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Finding the Fourth Proportional to 531,431.04, 732,960.12 and 340,462.20

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Solution

The fourth proportional to 531,431.04, 732,960.12 and 340,462.20 is: 469,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,431.04 : 732,960.12 = 340,462.20 : x
  2. Step 2: Convert to fraction form
    531,431.04/732,960.12 = 340,462.20/x
  3. Step 3: Cross multiply
    531,431.04x = 732,960.12 × 340,462.20
  4. Step 4: Simplify right side
    531,431.04x = 249,545,214,967.46
  5. Step 5: Solve for x
    x = 249,545,214,967.46/531,431.04
  6. Step 6: Final answer
    x = 469,572.15

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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.