Home / 1,431,242.78-2,146,865.40-672,527.75

Finding the Fourth Proportional to 1,431,242.78, 2,146,865.40 and 672,527.75

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Solution

The fourth proportional to 1,431,242.78, 2,146,865.40 and 672,527.75 is: 1,008,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,242.78 : 2,146,865.40 = 672,527.75 : x
  2. Step 2: Convert to fraction form
    1,431,242.78/2,146,865.40 = 672,527.75/x
  3. Step 3: Cross multiply
    1,431,242.78x = 2,146,865.40 × 672,527.75
  4. Step 4: Simplify right side
    1,431,242.78x = 1,443,826,546,280.52
  5. Step 5: Solve for x
    x = 1,443,826,546,280.52/1,431,242.78
  6. Step 6: Final answer
    x = 1,008,792.20

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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.