Home / 1,101,641.36-1,520,275.59-643,042.04

Finding the Fourth Proportional to 1,101,641.36, 1,520,275.59 and 643,042.04

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Solution

The fourth proportional to 1,101,641.36, 1,520,275.59 and 643,042.04 is: 887,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,641.36 : 1,520,275.59 = 643,042.04 : x
  2. Step 2: Convert to fraction form
    1,101,641.36/1,520,275.59 = 643,042.04/x
  3. Step 3: Cross multiply
    1,101,641.36x = 1,520,275.59 × 643,042.04
  4. Step 4: Simplify right side
    1,101,641.36x = 977,601,109,154.43
  5. Step 5: Solve for x
    x = 977,601,109,154.43/1,101,641.36
  6. Step 6: Final answer
    x = 887,404.15

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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.