Home / 992,507.80-1,488,761.70-519,338.20

Finding the Fourth Proportional to 992,507.80, 1,488,761.70 and 519,338.20

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Solution

The fourth proportional to 992,507.80, 1,488,761.70 and 519,338.20 is: 779,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,507.80 : 1,488,761.70 = 519,338.20 : x
  2. Step 2: Convert to fraction form
    992,507.80/1,488,761.70 = 519,338.20/x
  3. Step 3: Cross multiply
    992,507.80x = 1,488,761.70 × 519,338.20
  4. Step 4: Simplify right side
    992,507.80x = 773,170,821,506.94
  5. Step 5: Solve for x
    x = 773,170,821,506.94/992,507.80
  6. Step 6: Final answer
    x = 779,007.30

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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.