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Finding the Fourth Proportional to 576,614.70, 864,920.01 and 155,890.50

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Solution

The fourth proportional to 576,614.70, 864,920.01 and 155,890.50 is: 233,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,614.70 : 864,920.01 = 155,890.50 : x
  2. Step 2: Convert to fraction form
    576,614.70/864,920.01 = 155,890.50/x
  3. Step 3: Cross multiply
    576,614.70x = 864,920.01 × 155,890.50
  4. Step 4: Simplify right side
    576,614.70x = 134,832,812,818.91
  5. Step 5: Solve for x
    x = 134,832,812,818.91/576,614.70
  6. Step 6: Final answer
    x = 233,835.20

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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.