Home / 1,126,826.17-1,554,962.27-643,296.87

Finding the Fourth Proportional to 1,126,826.17, 1,554,962.27 and 643,296.87

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Solution

The fourth proportional to 1,126,826.17, 1,554,962.27 and 643,296.87 is: 887,716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,826.17 : 1,554,962.27 = 643,296.87 : x
  2. Step 2: Convert to fraction form
    1,126,826.17/1,554,962.27 = 643,296.87/x
  3. Step 3: Cross multiply
    1,126,826.17x = 1,554,962.27 × 643,296.87
  4. Step 4: Simplify right side
    1,126,826.17x = 1,000,302,358,042.61
  5. Step 5: Solve for x
    x = 1,000,302,358,042.61/1,126,826.17
  6. Step 6: Final answer
    x = 887,716.66

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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.