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Finding the Fourth Proportional to 530,652.42, 732,296.75 and 288,934.83

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Solution

The fourth proportional to 530,652.42, 732,296.75 and 288,934.83 is: 398,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,652.42 : 732,296.75 = 288,934.83 : x
  2. Step 2: Convert to fraction form
    530,652.42/732,296.75 = 288,934.83/x
  3. Step 3: Cross multiply
    530,652.42x = 732,296.75 × 288,934.83
  4. Step 4: Simplify right side
    530,652.42x = 211,586,035,526.13
  5. Step 5: Solve for x
    x = 211,586,035,526.13/530,652.42
  6. Step 6: Final answer
    x = 398,728.11

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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.