Home / 1,291,154.38-1,781,722.38-710,366.56

Finding the Fourth Proportional to 1,291,154.38, 1,781,722.38 and 710,366.56

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Solution

The fourth proportional to 1,291,154.38, 1,781,722.38 and 710,366.56 is: 980,266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,154.38 : 1,781,722.38 = 710,366.56 : x
  2. Step 2: Convert to fraction form
    1,291,154.38/1,781,722.38 = 710,366.56/x
  3. Step 3: Cross multiply
    1,291,154.38x = 1,781,722.38 × 710,366.56
  4. Step 4: Simplify right side
    1,291,154.38x = 1,265,675,997,955.61
  5. Step 5: Solve for x
    x = 1,265,675,997,955.61/1,291,154.38
  6. Step 6: Final answer
    x = 980,266.97

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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.