Home / 747,243.50-1,031,195.43-407,711.75

Finding the Fourth Proportional to 747,243.50, 1,031,195.43 and 407,711.75

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Solution

The fourth proportional to 747,243.50, 1,031,195.43 and 407,711.75 is: 562,641.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,243.50 : 1,031,195.43 = 407,711.75 : x
  2. Step 2: Convert to fraction form
    747,243.50/1,031,195.43 = 407,711.75/x
  3. Step 3: Cross multiply
    747,243.50x = 1,031,195.43 × 407,711.75
  4. Step 4: Simplify right side
    747,243.50x = 420,430,493,357.30
  5. Step 5: Solve for x
    x = 420,430,493,357.30/747,243.50
  6. Step 6: Final answer
    x = 562,641.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.