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Finding the Fourth Proportional to 550,966.26, 760,275.03 and 309,275.42

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Solution

The fourth proportional to 550,966.26, 760,275.03 and 309,275.42 is: 426,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,966.26 : 760,275.03 = 309,275.42 : x
  2. Step 2: Convert to fraction form
    550,966.26/760,275.03 = 309,275.42/x
  3. Step 3: Cross multiply
    550,966.26x = 760,275.03 × 309,275.42
  4. Step 4: Simplify right side
    550,966.26x = 235,134,375,417.39
  5. Step 5: Solve for x
    x = 235,134,375,417.39/550,966.26
  6. Step 6: Final answer
    x = 426,767.29

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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.