Home / 694,139.70-1,041,209.55-320,162.70

Finding the Fourth Proportional to 694,139.70, 1,041,209.55 and 320,162.70

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Solution

The fourth proportional to 694,139.70, 1,041,209.55 and 320,162.70 is: 480,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,139.70 : 1,041,209.55 = 320,162.70 : x
  2. Step 2: Convert to fraction form
    694,139.70/1,041,209.55 = 320,162.70/x
  3. Step 3: Cross multiply
    694,139.70x = 1,041,209.55 × 320,162.70
  4. Step 4: Simplify right side
    694,139.70x = 333,356,460,793.79
  5. Step 5: Solve for x
    x = 333,356,460,793.79/694,139.70
  6. Step 6: Final answer
    x = 480,244.05

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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.