Home / 1,687,996.40-2,329,434.80-913,627.08

Finding the Fourth Proportional to 1,687,996.40, 2,329,434.80 and 913,627.08

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Solution

The fourth proportional to 1,687,996.40, 2,329,434.80 and 913,627.08 is: 1,260,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,996.40 : 2,329,434.80 = 913,627.08 : x
  2. Step 2: Convert to fraction form
    1,687,996.40/2,329,434.80 = 913,627.08/x
  3. Step 3: Cross multiply
    1,687,996.40x = 2,329,434.80 × 913,627.08
  4. Step 4: Simplify right side
    1,687,996.40x = 2,128,234,714,374.38
  5. Step 5: Solve for x
    x = 2,128,234,714,374.38/1,687,996.40
  6. Step 6: Final answer
    x = 1,260,805.24

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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.