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Finding the Fourth Proportional to 576,320.20, 864,480.30 and 310,599.70

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Solution

The fourth proportional to 576,320.20, 864,480.30 and 310,599.70 is: 465,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,320.20 : 864,480.30 = 310,599.70 : x
  2. Step 2: Convert to fraction form
    576,320.20/864,480.30 = 310,599.70/x
  3. Step 3: Cross multiply
    576,320.20x = 864,480.30 × 310,599.70
  4. Step 4: Simplify right side
    576,320.20x = 268,507,321,835.91
  5. Step 5: Solve for x
    x = 268,507,321,835.91/576,320.20
  6. Step 6: Final answer
    x = 465,899.55

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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.