Home / 748,123.20-1,120,953.60-432,028.80

Finding the Fourth Proportional to 748,123.20, 1,120,953.60 and 432,028.80

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Solution

The fourth proportional to 748,123.20, 1,120,953.60 and 432,028.80 is: 647,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,123.20 : 1,120,953.60 = 432,028.80 : x
  2. Step 2: Convert to fraction form
    748,123.20/1,120,953.60 = 432,028.80/x
  3. Step 3: Cross multiply
    748,123.20x = 1,120,953.60 × 432,028.80
  4. Step 4: Simplify right side
    748,123.20x = 484,284,238,663.68
  5. Step 5: Solve for x
    x = 484,284,238,663.68/748,123.20
  6. Step 6: Final answer
    x = 647,332.20

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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.