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Finding the Fourth Proportional to 576,470.40, 864,964.80 and 260,764.80

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Solution

The fourth proportional to 576,470.40, 864,964.80 and 260,764.80 is: 391,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,470.40 : 864,964.80 = 260,764.80 : x
  2. Step 2: Convert to fraction form
    576,470.40/864,964.80 = 260,764.80/x
  3. Step 3: Cross multiply
    576,470.40x = 864,964.80 × 260,764.80
  4. Step 4: Simplify right side
    576,470.40x = 225,552,373,079.04
  5. Step 5: Solve for x
    x = 225,552,373,079.04/576,470.40
  6. Step 6: Final answer
    x = 391,264.45

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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.