Home / 480,073.02-721,567.32-320,714.43

Finding the Fourth Proportional to 480,073.02, 721,567.32 and 320,714.43

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Solution

The fourth proportional to 480,073.02, 721,567.32 and 320,714.43 is: 482,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,073.02 : 721,567.32 = 320,714.43 : x
  2. Step 2: Convert to fraction form
    480,073.02/721,567.32 = 320,714.43/x
  3. Step 3: Cross multiply
    480,073.02x = 721,567.32 × 320,714.43
  4. Step 4: Simplify right side
    480,073.02x = 231,417,051,740.43
  5. Step 5: Solve for x
    x = 231,417,051,740.43/480,073.02
  6. Step 6: Final answer
    x = 482,045.53

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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.