Home / 917,110.80-1,375,666.20-739,963.80

Finding the Fourth Proportional to 917,110.80, 1,375,666.20 and 739,963.80

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Solution

The fourth proportional to 917,110.80, 1,375,666.20 and 739,963.80 is: 1,109,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,110.80 : 1,375,666.20 = 739,963.80 : x
  2. Step 2: Convert to fraction form
    917,110.80/1,375,666.20 = 739,963.80/x
  3. Step 3: Cross multiply
    917,110.80x = 1,375,666.20 × 739,963.80
  4. Step 4: Simplify right side
    917,110.80x = 1,017,943,188,883.56
  5. Step 5: Solve for x
    x = 1,017,943,188,883.56/917,110.80
  6. Step 6: Final answer
    x = 1,109,945.70

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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.