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Finding the Fourth Proportional to 576,041.70, 864,062.55 and 310,321.20

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Solution

The fourth proportional to 576,041.70, 864,062.55 and 310,321.20 is: 465,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,041.70 : 864,062.55 = 310,321.20 : x
  2. Step 2: Convert to fraction form
    576,041.70/864,062.55 = 310,321.20/x
  3. Step 3: Cross multiply
    576,041.70x = 864,062.55 × 310,321.20
  4. Step 4: Simplify right side
    576,041.70x = 268,136,927,391.06
  5. Step 5: Solve for x
    x = 268,136,927,391.06/576,041.70
  6. Step 6: Final answer
    x = 465,481.80

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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.