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Finding the Fourth Proportional to 576,031.20, 864,046.80 and 310,310.70

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Solution

The fourth proportional to 576,031.20, 864,046.80 and 310,310.70 is: 465,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,031.20 : 864,046.80 = 310,310.70 : x
  2. Step 2: Convert to fraction form
    576,031.20/864,046.80 = 310,310.70/x
  3. Step 3: Cross multiply
    576,031.20x = 864,046.80 × 310,310.70
  4. Step 4: Simplify right side
    576,031.20x = 268,122,967,340.76
  5. Step 5: Solve for x
    x = 268,122,967,340.76/576,031.20
  6. Step 6: Final answer
    x = 465,466.05

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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.