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Finding the Fourth Proportional to 531,081.02, 732,882.58 and 289,365.58

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Solution

The fourth proportional to 531,081.02, 732,882.58 and 289,365.58 is: 399,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,081.02 : 732,882.58 = 289,365.58 : x
  2. Step 2: Convert to fraction form
    531,081.02/732,882.58 = 289,365.58/x
  3. Step 3: Cross multiply
    531,081.02x = 732,882.58 × 289,365.58
  4. Step 4: Simplify right side
    531,081.02x = 212,070,994,653.97
  5. Step 5: Solve for x
    x = 212,070,994,653.97/531,081.02
  6. Step 6: Final answer
    x = 399,319.47

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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.