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Finding the Fourth Proportional to 538,001.70, 807,002.55 and 328,049.70

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Solution

The fourth proportional to 538,001.70, 807,002.55 and 328,049.70 is: 492,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,001.70 : 807,002.55 = 328,049.70 : x
  2. Step 2: Convert to fraction form
    538,001.70/807,002.55 = 328,049.70/x
  3. Step 3: Cross multiply
    538,001.70x = 807,002.55 × 328,049.70
  4. Step 4: Simplify right side
    538,001.70x = 264,736,944,426.74
  5. Step 5: Solve for x
    x = 264,736,944,426.74/538,001.70
  6. Step 6: Final answer
    x = 492,074.55

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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.