Home / 992,996.45-1,488,328.28-459,390.32

Finding the Fourth Proportional to 992,996.45, 1,488,328.28 and 459,390.32

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Solution

The fourth proportional to 992,996.45, 1,488,328.28 and 459,390.32 is: 688,545.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,996.45 : 1,488,328.28 = 459,390.32 : x
  2. Step 2: Convert to fraction form
    992,996.45/1,488,328.28 = 459,390.32/x
  3. Step 3: Cross multiply
    992,996.45x = 1,488,328.28 × 459,390.32
  4. Step 4: Simplify right side
    992,996.45x = 683,723,602,517.30
  5. Step 5: Solve for x
    x = 683,723,602,517.30/992,996.45
  6. Step 6: Final answer
    x = 688,545.87

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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.