Home / 821,545.72-1,232,305.22-316,216.46

Finding the Fourth Proportional to 821,545.72, 1,232,305.22 and 316,216.46

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Solution

The fourth proportional to 821,545.72, 1,232,305.22 and 316,216.46 is: 474,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,545.72 : 1,232,305.22 = 316,216.46 : x
  2. Step 2: Convert to fraction form
    821,545.72/1,232,305.22 = 316,216.46/x
  3. Step 3: Cross multiply
    821,545.72x = 1,232,305.22 × 316,216.46
  4. Step 4: Simplify right side
    821,545.72x = 389,675,198,179.23
  5. Step 5: Solve for x
    x = 389,675,198,179.23/821,545.72
  6. Step 6: Final answer
    x = 474,319.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.