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Finding the Fourth Proportional to 530,474.52, 732,064.18 and 288,764.04

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Solution

The fourth proportional to 530,474.52, 732,064.18 and 288,764.04 is: 398,499.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,474.52 : 732,064.18 = 288,764.04 : x
  2. Step 2: Convert to fraction form
    530,474.52/732,064.18 = 288,764.04/x
  3. Step 3: Cross multiply
    530,474.52x = 732,064.18 × 288,764.04
  4. Step 4: Simplify right side
    530,474.52x = 211,393,810,156.09
  5. Step 5: Solve for x
    x = 211,393,810,156.09/530,474.52
  6. Step 6: Final answer
    x = 398,499.46

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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.