Home / 989,760.90-1,485,691.18-876,643.03

Finding the Fourth Proportional to 989,760.90, 1,485,691.18 and 876,643.03

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Solution

The fourth proportional to 989,760.90, 1,485,691.18 and 876,643.03 is: 1,315,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,760.90 : 1,485,691.18 = 876,643.03 : x
  2. Step 2: Convert to fraction form
    989,760.90/1,485,691.18 = 876,643.03/x
  3. Step 3: Cross multiply
    989,760.90x = 1,485,691.18 × 876,643.03
  4. Step 4: Simplify right side
    989,760.90x = 1,302,420,817,679.48
  5. Step 5: Solve for x
    x = 1,302,420,817,679.48/989,760.90
  6. Step 6: Final answer
    x = 1,315,894.39

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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.