Home / 1,253,670.76-1,730,065.64-717,126.76

Finding the Fourth Proportional to 1,253,670.76, 1,730,065.64 and 717,126.76

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Solution

The fourth proportional to 1,253,670.76, 1,730,065.64 and 717,126.76 is: 989,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,670.76 : 1,730,065.64 = 717,126.76 : x
  2. Step 2: Convert to fraction form
    1,253,670.76/1,730,065.64 = 717,126.76/x
  3. Step 3: Cross multiply
    1,253,670.76x = 1,730,065.64 × 717,126.76
  4. Step 4: Simplify right side
    1,253,670.76x = 1,240,676,367,000.53
  5. Step 5: Solve for x
    x = 1,240,676,367,000.53/1,253,670.76
  6. Step 6: Final answer
    x = 989,634.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.