Home / 992,280.30-1,488,420.45-519,110.70

Finding the Fourth Proportional to 992,280.30, 1,488,420.45 and 519,110.70

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Solution

The fourth proportional to 992,280.30, 1,488,420.45 and 519,110.70 is: 778,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,280.30 : 1,488,420.45 = 519,110.70 : x
  2. Step 2: Convert to fraction form
    992,280.30/1,488,420.45 = 519,110.70/x
  3. Step 3: Cross multiply
    992,280.30x = 1,488,420.45 × 519,110.70
  4. Step 4: Simplify right side
    992,280.30x = 772,654,981,693.82
  5. Step 5: Solve for x
    x = 772,654,981,693.82/992,280.30
  6. Step 6: Final answer
    x = 778,666.05

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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.