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Finding the Fourth Proportional to 578,073.40, 867,110.10 and 311,696.80

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Solution

The fourth proportional to 578,073.40, 867,110.10 and 311,696.80 is: 467,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,073.40 : 867,110.10 = 311,696.80 : x
  2. Step 2: Convert to fraction form
    578,073.40/867,110.10 = 311,696.80/x
  3. Step 3: Cross multiply
    578,073.40x = 867,110.10 × 311,696.80
  4. Step 4: Simplify right side
    578,073.40x = 270,275,443,417.68
  5. Step 5: Solve for x
    x = 270,275,443,417.68/578,073.40
  6. Step 6: Final answer
    x = 467,545.20

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Similar ratio
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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.