Home / 400,926.79-553,255.72-219,607.15

Finding the Fourth Proportional to 400,926.79, 553,255.72 and 219,607.15

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Solution

The fourth proportional to 400,926.79, 553,255.72 and 219,607.15 is: 303,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,926.79 : 553,255.72 = 219,607.15 : x
  2. Step 2: Convert to fraction form
    400,926.79/553,255.72 = 219,607.15/x
  3. Step 3: Cross multiply
    400,926.79x = 553,255.72 × 219,607.15
  4. Step 4: Simplify right side
    400,926.79x = 121,498,910,995.60
  5. Step 5: Solve for x
    x = 121,498,910,995.60/400,926.79
  6. Step 6: Final answer
    x = 303,045.13

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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.