Home / 558,859.31-771,326.50-329,403.20

Finding the Fourth Proportional to 558,859.31, 771,326.50 and 329,403.20

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Solution

The fourth proportional to 558,859.31, 771,326.50 and 329,403.20 is: 454,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,859.31 : 771,326.50 = 329,403.20 : x
  2. Step 2: Convert to fraction form
    558,859.31/771,326.50 = 329,403.20/x
  3. Step 3: Cross multiply
    558,859.31x = 771,326.50 × 329,403.20
  4. Step 4: Simplify right side
    558,859.31x = 254,077,417,621.00
  5. Step 5: Solve for x
    x = 254,077,417,621.00/558,859.31
  6. Step 6: Final answer
    x = 454,635.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.