Home / 880,020.39-1,214,428.68-477,612.39

Finding the Fourth Proportional to 880,020.39, 1,214,428.68 and 477,612.39

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Solution

The fourth proportional to 880,020.39, 1,214,428.68 and 477,612.39 is: 659,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,020.39 : 1,214,428.68 = 477,612.39 : x
  2. Step 2: Convert to fraction form
    880,020.39/1,214,428.68 = 477,612.39/x
  3. Step 3: Cross multiply
    880,020.39x = 1,214,428.68 × 477,612.39
  4. Step 4: Simplify right side
    880,020.39x = 580,026,184,339.35
  5. Step 5: Solve for x
    x = 580,026,184,339.35/880,020.39
  6. Step 6: Final answer
    x = 659,105.39

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.