Home / 644,014.73-888,128.30-469,426.25

Finding the Fourth Proportional to 644,014.73, 888,128.30 and 469,426.25

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Solution

The fourth proportional to 644,014.73, 888,128.30 and 469,426.25 is: 647,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,014.73 : 888,128.30 = 469,426.25 : x
  2. Step 2: Convert to fraction form
    644,014.73/888,128.30 = 469,426.25/x
  3. Step 3: Cross multiply
    644,014.73x = 888,128.30 × 469,426.25
  4. Step 4: Simplify right side
    644,014.73x = 416,910,730,600.10
  5. Step 5: Solve for x
    x = 416,910,730,600.10/644,014.73
  6. Step 6: Final answer
    x = 647,362.11

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Double scale
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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.