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Finding the Fourth Proportional to 550,984.70, 760,377.92 and 305,973.58

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Solution

The fourth proportional to 550,984.70, 760,377.92 and 305,973.58 is: 422,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,984.70 : 760,377.92 = 305,973.58 : x
  2. Step 2: Convert to fraction form
    550,984.70/760,377.92 = 305,973.58/x
  3. Step 3: Cross multiply
    550,984.70x = 760,377.92 × 305,973.58
  4. Step 4: Simplify right side
    550,984.70x = 232,655,554,335.35
  5. Step 5: Solve for x
    x = 232,655,554,335.35/550,984.70
  6. Step 6: Final answer
    x = 422,254.11

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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.