Home / 917,106.30-1,375,659.45-739,959.30

Finding the Fourth Proportional to 917,106.30, 1,375,659.45 and 739,959.30

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Solution

The fourth proportional to 917,106.30, 1,375,659.45 and 739,959.30 is: 1,109,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,106.30 : 1,375,659.45 = 739,959.30 : x
  2. Step 2: Convert to fraction form
    917,106.30/1,375,659.45 = 739,959.30/x
  3. Step 3: Cross multiply
    917,106.30x = 1,375,659.45 × 739,959.30
  4. Step 4: Simplify right side
    917,106.30x = 1,017,932,003,660.39
  5. Step 5: Solve for x
    x = 1,017,932,003,660.39/917,106.30
  6. Step 6: Final answer
    x = 1,109,938.95

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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.