Home / 992,996.20-1,488,327.90-459,390.07

Finding the Fourth Proportional to 992,996.20, 1,488,327.90 and 459,390.07

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Solution

The fourth proportional to 992,996.20, 1,488,327.90 and 459,390.07 is: 688,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,996.20 : 1,488,327.90 = 459,390.07 : x
  2. Step 2: Convert to fraction form
    992,996.20/1,488,327.90 = 459,390.07/x
  3. Step 3: Cross multiply
    992,996.20x = 1,488,327.90 × 459,390.07
  4. Step 4: Simplify right side
    992,996.20x = 683,723,058,163.95
  5. Step 5: Solve for x
    x = 683,723,058,163.95/992,996.20
  6. Step 6: Final answer
    x = 688,545.49

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1.5x scale

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.