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Finding the Fourth Proportional to 485,598.40, 727,814.40 and 248,819.20

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Solution

The fourth proportional to 485,598.40, 727,814.40 and 248,819.20 is: 372,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,598.40 : 727,814.40 = 248,819.20 : x
  2. Step 2: Convert to fraction form
    485,598.40/727,814.40 = 248,819.20/x
  3. Step 3: Cross multiply
    485,598.40x = 727,814.40 × 248,819.20
  4. Step 4: Simplify right side
    485,598.40x = 181,094,196,756.48
  5. Step 5: Solve for x
    x = 181,094,196,756.48/485,598.40
  6. Step 6: Final answer
    x = 372,929.97

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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.