Home / 481,505.40-721,566.90-354,151.80

Finding the Fourth Proportional to 481,505.40, 721,566.90 and 354,151.80

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Solution

The fourth proportional to 481,505.40, 721,566.90 and 354,151.80 is: 530,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,505.40 : 721,566.90 = 354,151.80 : x
  2. Step 2: Convert to fraction form
    481,505.40/721,566.90 = 354,151.80/x
  3. Step 3: Cross multiply
    481,505.40x = 721,566.90 × 354,151.80
  4. Step 4: Simplify right side
    481,505.40x = 255,544,216,455.42
  5. Step 5: Solve for x
    x = 255,544,216,455.42/481,505.40
  6. Step 6: Final answer
    x = 530,719.32

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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.