Home / 975,891.40-1,463,399.70-443,138.20

Finding the Fourth Proportional to 975,891.40, 1,463,399.70 and 443,138.20

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Solution

The fourth proportional to 975,891.40, 1,463,399.70 and 443,138.20 is: 664,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,891.40 : 1,463,399.70 = 443,138.20 : x
  2. Step 2: Convert to fraction form
    975,891.40/1,463,399.70 = 443,138.20/x
  3. Step 3: Cross multiply
    975,891.40x = 1,463,399.70 × 443,138.20
  4. Step 4: Simplify right side
    975,891.40x = 648,488,308,938.54
  5. Step 5: Solve for x
    x = 648,488,308,938.54/975,891.40
  6. Step 6: Final answer
    x = 664,508.68

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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.