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Finding the Fourth Proportional to 576,035.20, 864,052.80 and 520,922.80

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Solution

The fourth proportional to 576,035.20, 864,052.80 and 520,922.80 is: 781,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,035.20 : 864,052.80 = 520,922.80 : x
  2. Step 2: Convert to fraction form
    576,035.20/864,052.80 = 520,922.80/x
  3. Step 3: Cross multiply
    576,035.20x = 864,052.80 × 520,922.80
  4. Step 4: Simplify right side
    576,035.20x = 450,104,803,923.84
  5. Step 5: Solve for x
    x = 450,104,803,923.84/576,035.20
  6. Step 6: Final answer
    x = 781,384.20

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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.