Home / 813,970.01-1,215,026.76-753,936.86

Finding the Fourth Proportional to 813,970.01, 1,215,026.76 and 753,936.86

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Solution

The fourth proportional to 813,970.01, 1,215,026.76 and 753,936.86 is: 1,125,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,970.01 : 1,215,026.76 = 753,936.86 : x
  2. Step 2: Convert to fraction form
    813,970.01/1,215,026.76 = 753,936.86/x
  3. Step 3: Cross multiply
    813,970.01x = 1,215,026.76 × 753,936.86
  4. Step 4: Simplify right side
    813,970.01x = 916,053,454,175.24
  5. Step 5: Solve for x
    x = 916,053,454,175.24/813,970.01
  6. Step 6: Final answer
    x = 1,125,414.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.