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Finding the Fourth Proportional to 666,029.60, 999,044.40 and 453,453.20

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Solution

The fourth proportional to 666,029.60, 999,044.40 and 453,453.20 is: 680,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,029.60 : 999,044.40 = 453,453.20 : x
  2. Step 2: Convert to fraction form
    666,029.60/999,044.40 = 453,453.20/x
  3. Step 3: Cross multiply
    666,029.60x = 999,044.40 × 453,453.20
  4. Step 4: Simplify right side
    666,029.60x = 453,019,880,122.08
  5. Step 5: Solve for x
    x = 453,019,880,122.08/666,029.60
  6. Step 6: Final answer
    x = 680,179.80

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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.