Home / 752,542.80-1,128,986.54-326,150.24

Finding the Fourth Proportional to 752,542.80, 1,128,986.54 and 326,150.24

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Solution

The fourth proportional to 752,542.80, 1,128,986.54 and 326,150.24 is: 489,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,542.80 : 1,128,986.54 = 326,150.24 : x
  2. Step 2: Convert to fraction form
    752,542.80/1,128,986.54 = 326,150.24/x
  3. Step 3: Cross multiply
    752,542.80x = 1,128,986.54 × 326,150.24
  4. Step 4: Simplify right side
    752,542.80x = 368,219,223,702.09
  5. Step 5: Solve for x
    x = 368,219,223,702.09/752,542.80
  6. Step 6: Final answer
    x = 489,300.04

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Half scale
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Double scale
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Similar ratio
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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.