Home / 741,640.40-1,112,752.20-292,284.80

Finding the Fourth Proportional to 741,640.40, 1,112,752.20 and 292,284.80

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Solution

The fourth proportional to 741,640.40, 1,112,752.20 and 292,284.80 is: 438,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,640.40 : 1,112,752.20 = 292,284.80 : x
  2. Step 2: Convert to fraction form
    741,640.40/1,112,752.20 = 292,284.80/x
  3. Step 3: Cross multiply
    741,640.40x = 1,112,752.20 × 292,284.80
  4. Step 4: Simplify right side
    741,640.40x = 325,240,554,226.56
  5. Step 5: Solve for x
    x = 325,240,554,226.56/741,640.40
  6. Step 6: Final answer
    x = 438,542.12

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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.