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Finding the Fourth Proportional to 489,217.68, 732,789.72 and 369,570.96

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Solution

The fourth proportional to 489,217.68, 732,789.72 and 369,570.96 is: 553,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,217.68 : 732,789.72 = 369,570.96 : x
  2. Step 2: Convert to fraction form
    489,217.68/732,789.72 = 369,570.96/x
  3. Step 3: Cross multiply
    489,217.68x = 732,789.72 × 369,570.96
  4. Step 4: Simplify right side
    489,217.68x = 270,817,800,298.53
  5. Step 5: Solve for x
    x = 270,817,800,298.53/489,217.68
  6. Step 6: Final answer
    x = 553,573.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.