Home / 1,427,729.55-1,970,248.17-815,875.38

Finding the Fourth Proportional to 1,427,729.55, 1,970,248.17 and 815,875.38

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Solution

The fourth proportional to 1,427,729.55, 1,970,248.17 and 815,875.38 is: 1,125,897.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,729.55 : 1,970,248.17 = 815,875.38 : x
  2. Step 2: Convert to fraction form
    1,427,729.55/1,970,248.17 = 815,875.38/x
  3. Step 3: Cross multiply
    1,427,729.55x = 1,970,248.17 × 815,875.38
  4. Step 4: Simplify right side
    1,427,729.55x = 1,607,476,974,393.05
  5. Step 5: Solve for x
    x = 1,607,476,974,393.05/1,427,729.55
  6. Step 6: Final answer
    x = 1,125,897.39

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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.