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Finding the Fourth Proportional to 648,052.80, 970,378.20 and 457,484.10

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Solution

The fourth proportional to 648,052.80, 970,378.20 and 457,484.10 is: 685,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,052.80 : 970,378.20 = 457,484.10 : x
  2. Step 2: Convert to fraction form
    648,052.80/970,378.20 = 457,484.10/x
  3. Step 3: Cross multiply
    648,052.80x = 970,378.20 × 457,484.10
  4. Step 4: Simplify right side
    648,052.80x = 443,932,597,486.62
  5. Step 5: Solve for x
    x = 443,932,597,486.62/648,052.80
  6. Step 6: Final answer
    x = 685,025.35

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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.