Home / 989,709.40-1,483,251.90-876,860.20

Finding the Fourth Proportional to 989,709.40, 1,483,251.90 and 876,860.20

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Solution

The fourth proportional to 989,709.40, 1,483,251.90 and 876,860.20 is: 1,314,127.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,709.40 : 1,483,251.90 = 876,860.20 : x
  2. Step 2: Convert to fraction form
    989,709.40/1,483,251.90 = 876,860.20/x
  3. Step 3: Cross multiply
    989,709.40x = 1,483,251.90 × 876,860.20
  4. Step 4: Simplify right side
    989,709.40x = 1,300,604,557,684.38
  5. Step 5: Solve for x
    x = 1,300,604,557,684.38/989,709.40
  6. Step 6: Final answer
    x = 1,314,127.72

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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.