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Finding the Fourth Proportional to 506,774.72, 698,776.80 and 379,040.96

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Solution

The fourth proportional to 506,774.72, 698,776.80 and 379,040.96 is: 522,648.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,774.72 : 698,776.80 = 379,040.96 : x
  2. Step 2: Convert to fraction form
    506,774.72/698,776.80 = 379,040.96/x
  3. Step 3: Cross multiply
    506,774.72x = 698,776.80 × 379,040.96
  4. Step 4: Simplify right side
    506,774.72x = 264,865,029,097.73
  5. Step 5: Solve for x
    x = 264,865,029,097.73/506,774.72
  6. Step 6: Final answer
    x = 522,648.46

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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.