Home / 400,104.81-552,345.35-309,255.62

Finding the Fourth Proportional to 400,104.81, 552,345.35 and 309,255.62

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Solution

The fourth proportional to 400,104.81, 552,345.35 and 309,255.62 is: 426,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,104.81 : 552,345.35 = 309,255.62 : x
  2. Step 2: Convert to fraction form
    400,104.81/552,345.35 = 309,255.62/x
  3. Step 3: Cross multiply
    400,104.81x = 552,345.35 × 309,255.62
  4. Step 4: Simplify right side
    400,104.81x = 170,815,899,360.36
  5. Step 5: Solve for x
    x = 170,815,899,360.36/400,104.81
  6. Step 6: Final answer
    x = 426,927.88

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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.