Home / 712,200.60-1,068,905.70-291,778.20

Finding the Fourth Proportional to 712,200.60, 1,068,905.70 and 291,778.20

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Solution

The fourth proportional to 712,200.60, 1,068,905.70 and 291,778.20 is: 437,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,200.60 : 1,068,905.70 = 291,778.20 : x
  2. Step 2: Convert to fraction form
    712,200.60/1,068,905.70 = 291,778.20/x
  3. Step 3: Cross multiply
    712,200.60x = 1,068,905.70 × 291,778.20
  4. Step 4: Simplify right side
    712,200.60x = 311,883,381,115.74
  5. Step 5: Solve for x
    x = 311,883,381,115.74/712,200.60
  6. Step 6: Final answer
    x = 437,915.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.