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Finding the Fourth Proportional to 534,728.40, 801,703.80 and 219,022.80

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Solution

The fourth proportional to 534,728.40, 801,703.80 and 219,022.80 is: 328,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,728.40 : 801,703.80 = 219,022.80 : x
  2. Step 2: Convert to fraction form
    534,728.40/801,703.80 = 219,022.80/x
  3. Step 3: Cross multiply
    534,728.40x = 801,703.80 × 219,022.80
  4. Step 4: Simplify right side
    534,728.40x = 175,591,411,046.64
  5. Step 5: Solve for x
    x = 175,591,411,046.64/534,728.40
  6. Step 6: Final answer
    x = 328,374.95

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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.