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Finding the Fourth Proportional to 488,938.40, 733,407.60 and 472,608.80

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Solution

The fourth proportional to 488,938.40, 733,407.60 and 472,608.80 is: 708,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,938.40 : 733,407.60 = 472,608.80 : x
  2. Step 2: Convert to fraction form
    488,938.40/733,407.60 = 472,608.80/x
  3. Step 3: Cross multiply
    488,938.40x = 733,407.60 × 472,608.80
  4. Step 4: Simplify right side
    488,938.40x = 346,614,885,746.88
  5. Step 5: Solve for x
    x = 346,614,885,746.88/488,938.40
  6. Step 6: Final answer
    x = 708,913.20

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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.