Home / 992,896.40-1,488,839.16-487,495.28

Finding the Fourth Proportional to 992,896.40, 1,488,839.16 and 487,495.28

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Solution

The fourth proportional to 992,896.40, 1,488,839.16 and 487,495.28 is: 730,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,896.40 : 1,488,839.16 = 487,495.28 : x
  2. Step 2: Convert to fraction form
    992,896.40/1,488,839.16 = 487,495.28/x
  3. Step 3: Cross multiply
    992,896.40x = 1,488,839.16 × 487,495.28
  4. Step 4: Simplify right side
    992,896.40x = 725,802,063,179.17
  5. Step 5: Solve for x
    x = 725,802,063,179.17/992,896.40
  6. Step 6: Final answer
    x = 730,994.76

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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.