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Finding the Fourth Proportional to 608,049.70, 912,074.55 and 538,065.70

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Solution

The fourth proportional to 608,049.70, 912,074.55 and 538,065.70 is: 807,098.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,049.70 : 912,074.55 = 538,065.70 : x
  2. Step 2: Convert to fraction form
    608,049.70/912,074.55 = 538,065.70/x
  3. Step 3: Cross multiply
    608,049.70x = 912,074.55 × 538,065.70
  4. Step 4: Simplify right side
    608,049.70x = 490,756,031,197.94
  5. Step 5: Solve for x
    x = 490,756,031,197.94/608,049.70
  6. Step 6: Final answer
    x = 807,098.55

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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.