Home / 1,320,691.74-1,822,561.86-717,079.74

Finding the Fourth Proportional to 1,320,691.74, 1,822,561.86 and 717,079.74

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Solution

The fourth proportional to 1,320,691.74, 1,822,561.86 and 717,079.74 is: 989,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,691.74 : 1,822,561.86 = 717,079.74 : x
  2. Step 2: Convert to fraction form
    1,320,691.74/1,822,561.86 = 717,079.74/x
  3. Step 3: Cross multiply
    1,320,691.74x = 1,822,561.86 × 717,079.74
  4. Step 4: Simplify right side
    1,320,691.74x = 1,306,922,184,702.72
  5. Step 5: Solve for x
    x = 1,306,922,184,702.72/1,320,691.74
  6. Step 6: Final answer
    x = 989,573.98

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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.