Home / 987,609.32-1,482,036.72-388,492.62

Finding the Fourth Proportional to 987,609.32, 1,482,036.72 and 388,492.62

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Solution

The fourth proportional to 987,609.32, 1,482,036.72 and 388,492.62 is: 582,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,609.32 : 1,482,036.72 = 388,492.62 : x
  2. Step 2: Convert to fraction form
    987,609.32/1,482,036.72 = 388,492.62/x
  3. Step 3: Cross multiply
    987,609.32x = 1,482,036.72 × 388,492.62
  4. Step 4: Simplify right side
    987,609.32x = 575,760,321,274.52
  5. Step 5: Solve for x
    x = 575,760,321,274.52/987,609.32
  6. Step 6: Final answer
    x = 582,983.89

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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.