Home / 648,020.80-970,330.20-457,452.10

Finding the Fourth Proportional to 648,020.80, 970,330.20 and 457,452.10

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Solution

The fourth proportional to 648,020.80, 970,330.20 and 457,452.10 is: 684,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,020.80 : 970,330.20 = 457,452.10 : x
  2. Step 2: Convert to fraction form
    648,020.80/970,330.20 = 457,452.10/x
  3. Step 3: Cross multiply
    648,020.80x = 970,330.20 × 457,452.10
  4. Step 4: Simplify right side
    648,020.80x = 443,879,587,683.42
  5. Step 5: Solve for x
    x = 443,879,587,683.42/648,020.80
  6. Step 6: Final answer
    x = 684,977.38

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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.