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Finding the Fourth Proportional to 522,079.80, 729,140.25 and 522,079.80

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Solution

The fourth proportional to 522,079.80, 729,140.25 and 522,079.80 is: 729,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,079.80 : 729,140.25 = 522,079.80 : x
  2. Step 2: Convert to fraction form
    522,079.80/729,140.25 = 522,079.80/x
  3. Step 3: Cross multiply
    522,079.80x = 729,140.25 × 522,079.80
  4. Step 4: Simplify right side
    522,079.80x = 380,669,395,891.95
  5. Step 5: Solve for x
    x = 380,669,395,891.95/522,079.80
  6. Step 6: Final answer
    x = 729,140.25

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.