Home / 1,151,543.20-1,589,869.20-722,411.68

Finding the Fourth Proportional to 1,151,543.20, 1,589,869.20 and 722,411.68

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Solution

The fourth proportional to 1,151,543.20, 1,589,869.20 and 722,411.68 is: 997,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,543.20 : 1,589,869.20 = 722,411.68 : x
  2. Step 2: Convert to fraction form
    1,151,543.20/1,589,869.20 = 722,411.68/x
  3. Step 3: Cross multiply
    1,151,543.20x = 1,589,869.20 × 722,411.68
  4. Step 4: Simplify right side
    1,151,543.20x = 1,148,540,079,752.26
  5. Step 5: Solve for x
    x = 1,148,540,079,752.26/1,151,543.20
  6. Step 6: Final answer
    x = 997,392.09

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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.