Home / 1,205,691.38-1,663,856.47-715,759.16

Finding the Fourth Proportional to 1,205,691.38, 1,663,856.47 and 715,759.16

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Solution

The fourth proportional to 1,205,691.38, 1,663,856.47 and 715,759.16 is: 987,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,691.38 : 1,663,856.47 = 715,759.16 : x
  2. Step 2: Convert to fraction form
    1,205,691.38/1,663,856.47 = 715,759.16/x
  3. Step 3: Cross multiply
    1,205,691.38x = 1,663,856.47 × 715,759.16
  4. Step 4: Simplify right side
    1,205,691.38x = 1,190,920,501,903.18
  5. Step 5: Solve for x
    x = 1,190,920,501,903.18/1,205,691.38
  6. Step 6: Final answer
    x = 987,749.04

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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.