Home / 400,868.80-553,206.86-219,580.72

Finding the Fourth Proportional to 400,868.80, 553,206.86 and 219,580.72

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Solution

The fourth proportional to 400,868.80, 553,206.86 and 219,580.72 is: 303,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,868.80 : 553,206.86 = 219,580.72 : x
  2. Step 2: Convert to fraction form
    400,868.80/553,206.86 = 219,580.72/x
  3. Step 3: Cross multiply
    400,868.80x = 553,206.86 × 219,580.72
  4. Step 4: Simplify right side
    400,868.80x = 121,473,560,627.74
  5. Step 5: Solve for x
    x = 121,473,560,627.74/400,868.80
  6. Step 6: Final answer
    x = 303,025.73

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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.