Home / 722,960.80-1,084,441.20-457,240.30

Finding the Fourth Proportional to 722,960.80, 1,084,441.20 and 457,240.30

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Solution

The fourth proportional to 722,960.80, 1,084,441.20 and 457,240.30 is: 685,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,960.80 : 1,084,441.20 = 457,240.30 : x
  2. Step 2: Convert to fraction form
    722,960.80/1,084,441.20 = 457,240.30/x
  3. Step 3: Cross multiply
    722,960.80x = 1,084,441.20 × 457,240.30
  4. Step 4: Simplify right side
    722,960.80x = 495,850,219,620.36
  5. Step 5: Solve for x
    x = 495,850,219,620.36/722,960.80
  6. Step 6: Final answer
    x = 685,860.45

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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.