Home / 1,057,987.80-1,586,981.70-739,123.20

Finding the Fourth Proportional to 1,057,987.80, 1,586,981.70 and 739,123.20

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Solution

The fourth proportional to 1,057,987.80, 1,586,981.70 and 739,123.20 is: 1,108,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,987.80 : 1,586,981.70 = 739,123.20 : x
  2. Step 2: Convert to fraction form
    1,057,987.80/1,586,981.70 = 739,123.20/x
  3. Step 3: Cross multiply
    1,057,987.80x = 1,586,981.70 × 739,123.20
  4. Step 4: Simplify right side
    1,057,987.80x = 1,172,974,992,445.44
  5. Step 5: Solve for x
    x = 1,172,974,992,445.44/1,057,987.80
  6. Step 6: Final answer
    x = 1,108,684.80

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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.