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Finding the Fourth Proportional to 514,527.52, 710,073.30 and 310,575.20

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Solution

The fourth proportional to 514,527.52, 710,073.30 and 310,575.20 is: 428,609.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,527.52 : 710,073.30 = 310,575.20 : x
  2. Step 2: Convert to fraction form
    514,527.52/710,073.30 = 310,575.20/x
  3. Step 3: Cross multiply
    514,527.52x = 710,073.30 × 310,575.20
  4. Step 4: Simplify right side
    514,527.52x = 220,531,157,162.16
  5. Step 5: Solve for x
    x = 220,531,157,162.16/514,527.52
  6. Step 6: Final answer
    x = 428,609.06

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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.