Home / 603,442.60-904,127.10-318,711.40

Finding the Fourth Proportional to 603,442.60, 904,127.10 and 318,711.40

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Solution

The fourth proportional to 603,442.60, 904,127.10 and 318,711.40 is: 477,519.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,442.60 : 904,127.10 = 318,711.40 : x
  2. Step 2: Convert to fraction form
    603,442.60/904,127.10 = 318,711.40/x
  3. Step 3: Cross multiply
    603,442.60x = 904,127.10 × 318,711.40
  4. Step 4: Simplify right side
    603,442.60x = 288,155,613,818.94
  5. Step 5: Solve for x
    x = 288,155,613,818.94/603,442.60
  6. Step 6: Final answer
    x = 477,519.51

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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.