Home / 400,872.96-553,185.03-219,585.70

Finding the Fourth Proportional to 400,872.96, 553,185.03 and 219,585.70

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Solution

The fourth proportional to 400,872.96, 553,185.03 and 219,585.70 is: 303,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,872.96 : 553,185.03 = 219,585.70 : x
  2. Step 2: Convert to fraction form
    400,872.96/553,185.03 = 219,585.70/x
  3. Step 3: Cross multiply
    400,872.96x = 553,185.03 × 219,585.70
  4. Step 4: Simplify right side
    400,872.96x = 121,471,522,042.07
  5. Step 5: Solve for x
    x = 121,471,522,042.07/400,872.96
  6. Step 6: Final answer
    x = 303,017.50

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1.5x scale

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.