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Finding the Fourth Proportional to 1,103,540, 1,522,886.80 and 626,612

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Solution

The fourth proportional to 1,103,540, 1,522,886.80 and 626,612 is: 864,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,540 : 1,522,886.80 = 626,612 : x
  2. Step 2: Convert to fraction form
    1,103,540/1,522,886.80 = 626,612/x
  3. Step 3: Cross multiply
    1,103,540x = 1,522,886.80 × 626,612
  4. Step 4: Simplify right side
    1,103,540x = 954,259,143,521.60
  5. Step 5: Solve for x
    x = 954,259,143,521.60/1,103,540
  6. Step 6: Final answer
    x = 864,725.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.