Home / 711,311.73-981,550.85-401,197.23

Finding the Fourth Proportional to 711,311.73, 981,550.85 and 401,197.23

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Solution

The fourth proportional to 711,311.73, 981,550.85 and 401,197.23 is: 553,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,311.73 : 981,550.85 = 401,197.23 : x
  2. Step 2: Convert to fraction form
    711,311.73/981,550.85 = 401,197.23/x
  3. Step 3: Cross multiply
    711,311.73x = 981,550.85 × 401,197.23
  4. Step 4: Simplify right side
    711,311.73x = 393,795,480,742.65
  5. Step 5: Solve for x
    x = 393,795,480,742.65/711,311.73
  6. Step 6: Final answer
    x = 553,618.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.