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Finding the Fourth Proportional to 1,103,520, 1,522,859.20 and 626,592

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Solution

The fourth proportional to 1,103,520, 1,522,859.20 and 626,592 is: 864,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,520 : 1,522,859.20 = 626,592 : x
  2. Step 2: Convert to fraction form
    1,103,520/1,522,859.20 = 626,592/x
  3. Step 3: Cross multiply
    1,103,520x = 1,522,859.20 × 626,592
  4. Step 4: Simplify right side
    1,103,520x = 954,211,391,846.40
  5. Step 5: Solve for x
    x = 954,211,391,846.40/1,103,520
  6. Step 6: Final answer
    x = 864,697.87

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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.