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Finding the Fourth Proportional to 530,903, 732,646.18 and 292,439

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Solution

The fourth proportional to 530,903, 732,646.18 and 292,439 is: 403,565.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,903 : 732,646.18 = 292,439 : x
  2. Step 2: Convert to fraction form
    530,903/732,646.18 = 292,439/x
  3. Step 3: Cross multiply
    530,903x = 732,646.18 × 292,439
  4. Step 4: Simplify right side
    530,903x = 214,254,316,233.02
  5. Step 5: Solve for x
    x = 214,254,316,233.02/530,903
  6. Step 6: Final answer
    x = 403,565.84

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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.