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Finding the Fourth Proportional to 531,070.52, 732,867.18 and 289,350.20

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Solution

The fourth proportional to 531,070.52, 732,867.18 and 289,350.20 is: 399,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,070.52 : 732,867.18 = 289,350.20 : x
  2. Step 2: Convert to fraction form
    531,070.52/732,867.18 = 289,350.20/x
  3. Step 3: Cross multiply
    531,070.52x = 732,867.18 × 289,350.20
  4. Step 4: Simplify right side
    531,070.52x = 212,055,265,106.44
  5. Step 5: Solve for x
    x = 212,055,265,106.44/531,070.52
  6. Step 6: Final answer
    x = 399,297.75

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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.