Home / 488,456.10-731,647.35-405,512.10

Finding the Fourth Proportional to 488,456.10, 731,647.35 and 405,512.10

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Solution

The fourth proportional to 488,456.10, 731,647.35 and 405,512.10 is: 607,407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,456.10 : 731,647.35 = 405,512.10 : x
  2. Step 2: Convert to fraction form
    488,456.10/731,647.35 = 405,512.10/x
  3. Step 3: Cross multiply
    488,456.10x = 731,647.35 × 405,512.10
  4. Step 4: Simplify right side
    488,456.10x = 296,691,853,357.94
  5. Step 5: Solve for x
    x = 296,691,853,357.94/488,456.10
  6. Step 6: Final answer
    x = 607,407.41

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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.