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Finding the Fourth Proportional to 530,467.01, 732,060.98 and 288,765.69

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Solution

The fourth proportional to 530,467.01, 732,060.98 and 288,765.69 is: 398,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,467.01 : 732,060.98 = 288,765.69 : x
  2. Step 2: Convert to fraction form
    530,467.01/732,060.98 = 288,765.69/x
  3. Step 3: Cross multiply
    530,467.01x = 732,060.98 × 288,765.69
  4. Step 4: Simplify right side
    530,467.01x = 211,394,092,567.95
  5. Step 5: Solve for x
    x = 211,394,092,567.95/530,467.01
  6. Step 6: Final answer
    x = 398,505.64

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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.