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Finding the Fourth Proportional to 530,850.87, 732,570.45 and 289,132.71

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Solution

The fourth proportional to 530,850.87, 732,570.45 and 289,132.71 is: 399,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,850.87 : 732,570.45 = 289,132.71 : x
  2. Step 2: Convert to fraction form
    530,850.87/732,570.45 = 289,132.71/x
  3. Step 3: Cross multiply
    530,850.87x = 732,570.45 × 289,132.71
  4. Step 4: Simplify right side
    530,850.87x = 211,810,079,474.42
  5. Step 5: Solve for x
    x = 211,810,079,474.42/530,850.87
  6. Step 6: Final answer
    x = 399,001.10

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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.