Home / 643,275.24-887,826.12-356,887.59

Finding the Fourth Proportional to 643,275.24, 887,826.12 and 356,887.59

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Solution

The fourth proportional to 643,275.24, 887,826.12 and 356,887.59 is: 492,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,275.24 : 887,826.12 = 356,887.59 : x
  2. Step 2: Convert to fraction form
    643,275.24/887,826.12 = 356,887.59/x
  3. Step 3: Cross multiply
    643,275.24x = 887,826.12 × 356,887.59
  4. Step 4: Simplify right side
    643,275.24x = 316,854,124,305.85
  5. Step 5: Solve for x
    x = 316,854,124,305.85/643,275.24
  6. Step 6: Final answer
    x = 492,563.84

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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.