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Finding the Fourth Proportional to 880,294.76, 1,214,807.98 and 477,886.76

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Solution

The fourth proportional to 880,294.76, 1,214,807.98 and 477,886.76 is: 659,484.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,294.76 : 1,214,807.98 = 477,886.76 : x
  2. Step 2: Convert to fraction form
    880,294.76/1,214,807.98 = 477,886.76/x
  3. Step 3: Cross multiply
    880,294.76x = 1,214,807.98 × 477,886.76
  4. Step 4: Simplify right side
    880,294.76x = 580,540,649,584.35
  5. Step 5: Solve for x
    x = 580,540,649,584.35/880,294.76
  6. Step 6: Final answer
    x = 659,484.39

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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.