Home / 820,134.70-1,230,202.05-654,246.70

Finding the Fourth Proportional to 820,134.70, 1,230,202.05 and 654,246.70

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Solution

The fourth proportional to 820,134.70, 1,230,202.05 and 654,246.70 is: 981,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,134.70 : 1,230,202.05 = 654,246.70 : x
  2. Step 2: Convert to fraction form
    820,134.70/1,230,202.05 = 654,246.70/x
  3. Step 3: Cross multiply
    820,134.70x = 1,230,202.05 × 654,246.70
  4. Step 4: Simplify right side
    820,134.70x = 804,855,631,545.74
  5. Step 5: Solve for x
    x = 804,855,631,545.74/820,134.70
  6. Step 6: Final answer
    x = 981,370.05

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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.