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Finding the Fourth Proportional to 555,026.18, 765,938.43 and 300,377.34

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Solution

The fourth proportional to 555,026.18, 765,938.43 and 300,377.34 is: 414,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,026.18 : 765,938.43 = 300,377.34 : x
  2. Step 2: Convert to fraction form
    555,026.18/765,938.43 = 300,377.34/x
  3. Step 3: Cross multiply
    555,026.18x = 765,938.43 × 300,377.34
  4. Step 4: Simplify right side
    555,026.18x = 230,070,548,207.18
  5. Step 5: Solve for x
    x = 230,070,548,207.18/555,026.18
  6. Step 6: Final answer
    x = 414,521.98

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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.