Home / 638,542.26-881,228.03-352,061.87

Finding the Fourth Proportional to 638,542.26, 881,228.03 and 352,061.87

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Solution

The fourth proportional to 638,542.26, 881,228.03 and 352,061.87 is: 485,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,542.26 : 881,228.03 = 352,061.87 : x
  2. Step 2: Convert to fraction form
    638,542.26/881,228.03 = 352,061.87/x
  3. Step 3: Cross multiply
    638,542.26x = 881,228.03 × 352,061.87
  4. Step 4: Simplify right side
    638,542.26x = 310,246,781,971.77
  5. Step 5: Solve for x
    x = 310,246,781,971.77/638,542.26
  6. Step 6: Final answer
    x = 485,867.27

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1.5x scale

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.