Home / 917,105.88-1,374,377.40-781,461.66

Finding the Fourth Proportional to 917,105.88, 1,374,377.40 and 781,461.66

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Solution

The fourth proportional to 917,105.88, 1,374,377.40 and 781,461.66 is: 1,171,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,105.88 : 1,374,377.40 = 781,461.66 : x
  2. Step 2: Convert to fraction form
    917,105.88/1,374,377.40 = 781,461.66/x
  3. Step 3: Cross multiply
    917,105.88x = 1,374,377.40 × 781,461.66
  4. Step 4: Simplify right side
    917,105.88x = 1,074,023,244,470.48
  5. Step 5: Solve for x
    x = 1,074,023,244,470.48/917,105.88
  6. Step 6: Final answer
    x = 1,171,100.60

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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.