Home / 1,147,257.70-1,720,886.55-727,008.10

Finding the Fourth Proportional to 1,147,257.70, 1,720,886.55 and 727,008.10

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Solution

The fourth proportional to 1,147,257.70, 1,720,886.55 and 727,008.10 is: 1,090,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,257.70 : 1,720,886.55 = 727,008.10 : x
  2. Step 2: Convert to fraction form
    1,147,257.70/1,720,886.55 = 727,008.10/x
  3. Step 3: Cross multiply
    1,147,257.70x = 1,720,886.55 × 727,008.10
  4. Step 4: Simplify right side
    1,147,257.70x = 1,251,098,461,031.06
  5. Step 5: Solve for x
    x = 1,251,098,461,031.06/1,147,257.70
  6. Step 6: Final answer
    x = 1,090,512.15

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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.