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Finding the Fourth Proportional to 624,465.60, 861,764.88 and 337,985.76

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Solution

The fourth proportional to 624,465.60, 861,764.88 and 337,985.76 is: 466,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,465.60 : 861,764.88 = 337,985.76 : x
  2. Step 2: Convert to fraction form
    624,465.60/861,764.88 = 337,985.76/x
  3. Step 3: Cross multiply
    624,465.60x = 861,764.88 × 337,985.76
  4. Step 4: Simplify right side
    624,465.60x = 291,264,257,908.11
  5. Step 5: Solve for x
    x = 291,264,257,908.11/624,465.60
  6. Step 6: Final answer
    x = 466,421.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.