Home / 629,769.90-944,308.17-430,315.50

Finding the Fourth Proportional to 629,769.90, 944,308.17 and 430,315.50

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Solution

The fourth proportional to 629,769.90, 944,308.17 and 430,315.50 is: 645,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,769.90 : 944,308.17 = 430,315.50 : x
  2. Step 2: Convert to fraction form
    629,769.90/944,308.17 = 430,315.50/x
  3. Step 3: Cross multiply
    629,769.90x = 944,308.17 × 430,315.50
  4. Step 4: Simplify right side
    629,769.90x = 406,350,442,327.64
  5. Step 5: Solve for x
    x = 406,350,442,327.64/629,769.90
  6. Step 6: Final answer
    x = 645,236.37

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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.