Home / 1,340,290.92-1,849,613.58-728,445.14

Finding the Fourth Proportional to 1,340,290.92, 1,849,613.58 and 728,445.14

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Solution

The fourth proportional to 1,340,290.92, 1,849,613.58 and 728,445.14 is: 1,005,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,290.92 : 1,849,613.58 = 728,445.14 : x
  2. Step 2: Convert to fraction form
    1,340,290.92/1,849,613.58 = 728,445.14/x
  3. Step 3: Cross multiply
    1,340,290.92x = 1,849,613.58 × 728,445.14
  4. Step 4: Simplify right side
    1,340,290.92x = 1,347,342,013,980.93
  5. Step 5: Solve for x
    x = 1,347,342,013,980.93/1,340,290.92
  6. Step 6: Final answer
    x = 1,005,260.87

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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.