Home / 1,386,142.38-1,913,776.20-1,240,696.08

Finding the Fourth Proportional to 1,386,142.38, 1,913,776.20 and 1,240,696.08

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Solution

The fourth proportional to 1,386,142.38, 1,913,776.20 and 1,240,696.08 is: 1,712,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,142.38 : 1,913,776.20 = 1,240,696.08 : x
  2. Step 2: Convert to fraction form
    1,386,142.38/1,913,776.20 = 1,240,696.08/x
  3. Step 3: Cross multiply
    1,386,142.38x = 1,913,776.20 × 1,240,696.08
  4. Step 4: Simplify right side
    1,386,142.38x = 2,374,414,629,337.30
  5. Step 5: Solve for x
    x = 2,374,414,629,337.30/1,386,142.38
  6. Step 6: Final answer
    x = 1,712,965.90

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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.