Home / 938,354.60-1,407,531.90-432,914.60

Finding the Fourth Proportional to 938,354.60, 1,407,531.90 and 432,914.60

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Solution

The fourth proportional to 938,354.60, 1,407,531.90 and 432,914.60 is: 649,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,354.60 : 1,407,531.90 = 432,914.60 : x
  2. Step 2: Convert to fraction form
    938,354.60/1,407,531.90 = 432,914.60/x
  3. Step 3: Cross multiply
    938,354.60x = 1,407,531.90 × 432,914.60
  4. Step 4: Simplify right side
    938,354.60x = 609,341,109,475.74
  5. Step 5: Solve for x
    x = 609,341,109,475.74/938,354.60
  6. Step 6: Final answer
    x = 649,371.90

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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.