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Finding the Fourth Proportional to 579,752.49, 869,876.59 and 299,466.57

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Solution

The fourth proportional to 579,752.49, 869,876.59 and 299,466.57 is: 449,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,752.49 : 869,876.59 = 299,466.57 : x
  2. Step 2: Convert to fraction form
    579,752.49/869,876.59 = 299,466.57/x
  3. Step 3: Cross multiply
    579,752.49x = 869,876.59 × 299,466.57
  4. Step 4: Simplify right side
    579,752.49x = 260,498,957,754.66
  5. Step 5: Solve for x
    x = 260,498,957,754.66/579,752.49
  6. Step 6: Final answer
    x = 449,327.88

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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.