Home / 1,585,549.62-2,378,687.88-687,142.20

Finding the Fourth Proportional to 1,585,549.62, 2,378,687.88 and 687,142.20

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Solution

The fourth proportional to 1,585,549.62, 2,378,687.88 and 687,142.20 is: 1,030,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,549.62 : 2,378,687.88 = 687,142.20 : x
  2. Step 2: Convert to fraction form
    1,585,549.62/2,378,687.88 = 687,142.20/x
  3. Step 3: Cross multiply
    1,585,549.62x = 2,378,687.88 × 687,142.20
  4. Step 4: Simplify right side
    1,585,549.62x = 1,634,496,822,976.54
  5. Step 5: Solve for x
    x = 1,634,496,822,976.54/1,585,549.62
  6. Step 6: Final answer
    x = 1,030,870.81

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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.