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Finding the Fourth Proportional to 1,631,079, 2,250,889.08 and 915,687

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Solution

The fourth proportional to 1,631,079, 2,250,889.08 and 915,687 is: 1,263,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,079 : 2,250,889.08 = 915,687 : x
  2. Step 2: Convert to fraction form
    1,631,079/2,250,889.08 = 915,687/x
  3. Step 3: Cross multiply
    1,631,079x = 2,250,889.08 × 915,687
  4. Step 4: Simplify right side
    1,631,079x = 2,061,109,868,997.96
  5. Step 5: Solve for x
    x = 2,061,109,868,997.96/1,631,079
  6. Step 6: Final answer
    x = 1,263,648.09

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1.5x scale

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.