Home / 840,572.58-1,160,022.72-478,029.54

Finding the Fourth Proportional to 840,572.58, 1,160,022.72 and 478,029.54

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Solution

The fourth proportional to 840,572.58, 1,160,022.72 and 478,029.54 is: 659,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,572.58 : 1,160,022.72 = 478,029.54 : x
  2. Step 2: Convert to fraction form
    840,572.58/1,160,022.72 = 478,029.54/x
  3. Step 3: Cross multiply
    840,572.58x = 1,160,022.72 × 478,029.54
  4. Step 4: Simplify right side
    840,572.58x = 554,525,127,231.15
  5. Step 5: Solve for x
    x = 554,525,127,231.15/840,572.58
  6. Step 6: Final answer
    x = 659,699.28

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Double scale
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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.