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Finding the Fourth Proportional to 531,057.12, 732,867.22 and 289,339.62

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Solution

The fourth proportional to 531,057.12, 732,867.22 and 289,339.62 is: 399,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,057.12 : 732,867.22 = 289,339.62 : x
  2. Step 2: Convert to fraction form
    531,057.12/732,867.22 = 289,339.62/x
  3. Step 3: Cross multiply
    531,057.12x = 732,867.22 × 289,339.62
  4. Step 4: Simplify right side
    531,057.12x = 212,047,522,945.26
  5. Step 5: Solve for x
    x = 212,047,522,945.26/531,057.12
  6. Step 6: Final answer
    x = 399,293.25

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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.