Home / 743,288.10-1,114,932.15-269,988.90

Finding the Fourth Proportional to 743,288.10, 1,114,932.15 and 269,988.90

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Solution

The fourth proportional to 743,288.10, 1,114,932.15 and 269,988.90 is: 404,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,288.10 : 1,114,932.15 = 269,988.90 : x
  2. Step 2: Convert to fraction form
    743,288.10/1,114,932.15 = 269,988.90/x
  3. Step 3: Cross multiply
    743,288.10x = 1,114,932.15 × 269,988.90
  4. Step 4: Simplify right side
    743,288.10x = 301,019,304,753.14
  5. Step 5: Solve for x
    x = 301,019,304,753.14/743,288.10
  6. Step 6: Final answer
    x = 404,983.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.