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Finding the Fourth Proportional to 911,532.30, 1,367,298.45 and 876,540.30

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Solution

The fourth proportional to 911,532.30, 1,367,298.45 and 876,540.30 is: 1,314,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,532.30 : 1,367,298.45 = 876,540.30 : x
  2. Step 2: Convert to fraction form
    911,532.30/1,367,298.45 = 876,540.30/x
  3. Step 3: Cross multiply
    911,532.30x = 1,367,298.45 × 876,540.30
  4. Step 4: Simplify right side
    911,532.30x = 1,198,492,193,552.53
  5. Step 5: Solve for x
    x = 1,198,492,193,552.53/911,532.30
  6. Step 6: Final answer
    x = 1,314,810.45

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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.