Home / 480,961.80-721,287.18-348,147.72

Finding the Fourth Proportional to 480,961.80, 721,287.18 and 348,147.72

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Solution

The fourth proportional to 480,961.80, 721,287.18 and 348,147.72 is: 522,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,961.80 : 721,287.18 = 348,147.72 : x
  2. Step 2: Convert to fraction form
    480,961.80/721,287.18 = 348,147.72/x
  3. Step 3: Cross multiply
    480,961.80x = 721,287.18 × 348,147.72
  4. Step 4: Simplify right side
    480,961.80x = 251,114,487,182.23
  5. Step 5: Solve for x
    x = 251,114,487,182.23/480,961.80
  6. Step 6: Final answer
    x = 522,109.01

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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.