Home / 480,630.31-721,054.51-255,872.32

Finding the Fourth Proportional to 480,630.31, 721,054.51 and 255,872.32

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Solution

The fourth proportional to 480,630.31, 721,054.51 and 255,872.32 is: 383,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,630.31 : 721,054.51 = 255,872.32 : x
  2. Step 2: Convert to fraction form
    480,630.31/721,054.51 = 255,872.32/x
  3. Step 3: Cross multiply
    480,630.31x = 721,054.51 × 255,872.32
  4. Step 4: Simplify right side
    480,630.31x = 184,497,887,877.85
  5. Step 5: Solve for x
    x = 184,497,887,877.85/480,630.31
  6. Step 6: Final answer
    x = 383,866.53

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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.