Home / 1,340,461.57-1,849,850.11-728,613.95

Finding the Fourth Proportional to 1,340,461.57, 1,849,850.11 and 728,613.95

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Solution

The fourth proportional to 1,340,461.57, 1,849,850.11 and 728,613.95 is: 1,005,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,461.57 : 1,849,850.11 = 728,613.95 : x
  2. Step 2: Convert to fraction form
    1,340,461.57/1,849,850.11 = 728,613.95/x
  3. Step 3: Cross multiply
    1,340,461.57x = 1,849,850.11 × 728,613.95
  4. Step 4: Simplify right side
    1,340,461.57x = 1,347,826,598,358.12
  5. Step 5: Solve for x
    x = 1,347,826,598,358.12/1,340,461.57
  6. Step 6: Final answer
    x = 1,005,494.40

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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.