Home / 1,681,439.20-2,320,442.04-917,534.68

Finding the Fourth Proportional to 1,681,439.20, 2,320,442.04 and 917,534.68

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Solution

The fourth proportional to 1,681,439.20, 2,320,442.04 and 917,534.68 is: 1,266,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,439.20 : 2,320,442.04 = 917,534.68 : x
  2. Step 2: Convert to fraction form
    1,681,439.20/2,320,442.04 = 917,534.68/x
  3. Step 3: Cross multiply
    1,681,439.20x = 2,320,442.04 × 917,534.68
  4. Step 4: Simplify right side
    1,681,439.20x = 2,129,086,044,629.95
  5. Step 5: Solve for x
    x = 2,129,086,044,629.95/1,681,439.20
  6. Step 6: Final answer
    x = 1,266,228.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.