Home / 938,358.60-1,407,537.90-432,918.60

Finding the Fourth Proportional to 938,358.60, 1,407,537.90 and 432,918.60

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Solution

The fourth proportional to 938,358.60, 1,407,537.90 and 432,918.60 is: 649,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,358.60 : 1,407,537.90 = 432,918.60 : x
  2. Step 2: Convert to fraction form
    938,358.60/1,407,537.90 = 432,918.60/x
  3. Step 3: Cross multiply
    938,358.60x = 1,407,537.90 × 432,918.60
  4. Step 4: Simplify right side
    938,358.60x = 609,349,337,114.94
  5. Step 5: Solve for x
    x = 609,349,337,114.94/938,358.60
  6. Step 6: Final answer
    x = 649,377.90

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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.