Home / 1,427,364.59-1,969,754.05-815,704.43

Finding the Fourth Proportional to 1,427,364.59, 1,969,754.05 and 815,704.43

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Solution

The fourth proportional to 1,427,364.59, 1,969,754.05 and 815,704.43 is: 1,125,666.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,364.59 : 1,969,754.05 = 815,704.43 : x
  2. Step 2: Convert to fraction form
    1,427,364.59/1,969,754.05 = 815,704.43/x
  3. Step 3: Cross multiply
    1,427,364.59x = 1,969,754.05 × 815,704.43
  4. Step 4: Simplify right side
    1,427,364.59x = 1,606,737,095,766.30
  5. Step 5: Solve for x
    x = 1,606,737,095,766.30/1,427,364.59
  6. Step 6: Final answer
    x = 1,125,666.92

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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.