Home / 400,867.80-553,205.48-219,579.72

Finding the Fourth Proportional to 400,867.80, 553,205.48 and 219,579.72

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Solution

The fourth proportional to 400,867.80, 553,205.48 and 219,579.72 is: 303,024.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,867.80 : 553,205.48 = 219,579.72 : x
  2. Step 2: Convert to fraction form
    400,867.80/553,205.48 = 219,579.72/x
  3. Step 3: Cross multiply
    400,867.80x = 553,205.48 × 219,579.72
  4. Step 4: Simplify right side
    400,867.80x = 121,472,704,400.87
  5. Step 5: Solve for x
    x = 121,472,704,400.87/400,867.80
  6. Step 6: Final answer
    x = 303,024.35

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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.