Home / 1,087,756.38-1,500,620.85-724,826.16

Finding the Fourth Proportional to 1,087,756.38, 1,500,620.85 and 724,826.16

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Solution

The fourth proportional to 1,087,756.38, 1,500,620.85 and 724,826.16 is: 999,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,756.38 : 1,500,620.85 = 724,826.16 : x
  2. Step 2: Convert to fraction form
    1,087,756.38/1,500,620.85 = 724,826.16/x
  3. Step 3: Cross multiply
    1,087,756.38x = 1,500,620.85 × 724,826.16
  4. Step 4: Simplify right side
    1,087,756.38x = 1,087,689,248,321.44
  5. Step 5: Solve for x
    x = 1,087,689,248,321.44/1,087,756.38
  6. Step 6: Final answer
    x = 999,938.28

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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.