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Finding the Fourth Proportional to 576,137.49, 863,929.59 and 272,278.77

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Solution

The fourth proportional to 576,137.49, 863,929.59 and 272,278.77 is: 408,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,137.49 : 863,929.59 = 272,278.77 : x
  2. Step 2: Convert to fraction form
    576,137.49/863,929.59 = 272,278.77/x
  3. Step 3: Cross multiply
    576,137.49x = 863,929.59 × 272,278.77
  4. Step 4: Simplify right side
    576,137.49x = 235,229,686,131.80
  5. Step 5: Solve for x
    x = 235,229,686,131.80/576,137.49
  6. Step 6: Final answer
    x = 408,287.41

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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.