Home / 1,109,301.40-1,660,999.65-707,768.20

Finding the Fourth Proportional to 1,109,301.40, 1,660,999.65 and 707,768.20

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Solution

The fourth proportional to 1,109,301.40, 1,660,999.65 and 707,768.20 is: 1,059,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,301.40 : 1,660,999.65 = 707,768.20 : x
  2. Step 2: Convert to fraction form
    1,109,301.40/1,660,999.65 = 707,768.20/x
  3. Step 3: Cross multiply
    1,109,301.40x = 1,660,999.65 × 707,768.20
  4. Step 4: Simplify right side
    1,109,301.40x = 1,175,602,732,481.13
  5. Step 5: Solve for x
    x = 1,175,602,732,481.13/1,109,301.40
  6. Step 6: Final answer
    x = 1,059,768.55

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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.