Home / 747,816.80-1,121,725.20-304,584.80

Finding the Fourth Proportional to 747,816.80, 1,121,725.20 and 304,584.80

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Solution

The fourth proportional to 747,816.80, 1,121,725.20 and 304,584.80 is: 456,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,816.80 : 1,121,725.20 = 304,584.80 : x
  2. Step 2: Convert to fraction form
    747,816.80/1,121,725.20 = 304,584.80/x
  3. Step 3: Cross multiply
    747,816.80x = 1,121,725.20 × 304,584.80
  4. Step 4: Simplify right side
    747,816.80x = 341,660,445,696.96
  5. Step 5: Solve for x
    x = 341,660,445,696.96/747,816.80
  6. Step 6: Final answer
    x = 456,877.20

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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.