Home / 814,247.10-1,220,780.16-547,345.62

Finding the Fourth Proportional to 814,247.10, 1,220,780.16 and 547,345.62

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Solution

The fourth proportional to 814,247.10, 1,220,780.16 and 547,345.62 is: 820,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,247.10 : 1,220,780.16 = 547,345.62 : x
  2. Step 2: Convert to fraction form
    814,247.10/1,220,780.16 = 547,345.62/x
  3. Step 3: Cross multiply
    814,247.10x = 1,220,780.16 × 547,345.62
  4. Step 4: Simplify right side
    814,247.10x = 668,188,673,558.90
  5. Step 5: Solve for x
    x = 668,188,673,558.90/814,247.10
  6. Step 6: Final answer
    x = 820,621.50

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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.