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Finding the Fourth Proportional to 530,471.01, 732,059.34 and 288,760.53

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Solution

The fourth proportional to 530,471.01, 732,059.34 and 288,760.53 is: 398,494.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,471.01 : 732,059.34 = 288,760.53 : x
  2. Step 2: Convert to fraction form
    530,471.01/732,059.34 = 288,760.53/x
  3. Step 3: Cross multiply
    530,471.01x = 732,059.34 × 288,760.53
  4. Step 4: Simplify right side
    530,471.01x = 211,389,843,009.85
  5. Step 5: Solve for x
    x = 211,389,843,009.85/530,471.01
  6. Step 6: Final answer
    x = 398,494.62

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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.