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Finding the Fourth Proportional to 576,233.40, 864,862.10 and 339,279.80

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Solution

The fourth proportional to 576,233.40, 864,862.10 and 339,279.80 is: 509,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,233.40 : 864,862.10 = 339,279.80 : x
  2. Step 2: Convert to fraction form
    576,233.40/864,862.10 = 339,279.80/x
  3. Step 3: Cross multiply
    576,233.40x = 864,862.10 × 339,279.80
  4. Step 4: Simplify right side
    576,233.40x = 293,430,240,315.58
  5. Step 5: Solve for x
    x = 293,430,240,315.58/576,233.40
  6. Step 6: Final answer
    x = 509,221.16

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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.