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Finding the Fourth Proportional to 522,073.20, 783,109.80 and 362,640.90

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Solution

The fourth proportional to 522,073.20, 783,109.80 and 362,640.90 is: 543,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,073.20 : 783,109.80 = 362,640.90 : x
  2. Step 2: Convert to fraction form
    522,073.20/783,109.80 = 362,640.90/x
  3. Step 3: Cross multiply
    522,073.20x = 783,109.80 × 362,640.90
  4. Step 4: Simplify right side
    522,073.20x = 283,987,642,670.82
  5. Step 5: Solve for x
    x = 283,987,642,670.82/522,073.20
  6. Step 6: Final answer
    x = 543,961.35

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Similar ratio
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1.5x scale

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.