Home / 683,419.20-1,025,128.80-304,339.20

Finding the Fourth Proportional to 683,419.20, 1,025,128.80 and 304,339.20

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Solution

The fourth proportional to 683,419.20, 1,025,128.80 and 304,339.20 is: 456,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,419.20 : 1,025,128.80 = 304,339.20 : x
  2. Step 2: Convert to fraction form
    683,419.20/1,025,128.80 = 304,339.20/x
  3. Step 3: Cross multiply
    683,419.20x = 1,025,128.80 × 304,339.20
  4. Step 4: Simplify right side
    683,419.20x = 311,986,878,888.96
  5. Step 5: Solve for x
    x = 311,986,878,888.96/683,419.20
  6. Step 6: Final answer
    x = 456,508.80

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Similar ratio
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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.