Home / 643,027.32-887,296.14-352,562.46

Finding the Fourth Proportional to 643,027.32, 887,296.14 and 352,562.46

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Solution

The fourth proportional to 643,027.32, 887,296.14 and 352,562.46 is: 486,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,027.32 : 887,296.14 = 352,562.46 : x
  2. Step 2: Convert to fraction form
    643,027.32/887,296.14 = 352,562.46/x
  3. Step 3: Cross multiply
    643,027.32x = 887,296.14 × 352,562.46
  4. Step 4: Simplify right side
    643,027.32x = 312,827,309,866.90
  5. Step 5: Solve for x
    x = 312,827,309,866.90/643,027.32
  6. Step 6: Final answer
    x = 486,491.48

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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.