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Finding the Fourth Proportional to 634,295.46, 874,480.97 and 503,905.78

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Solution

The fourth proportional to 634,295.46, 874,480.97 and 503,905.78 is: 694,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,295.46 : 874,480.97 = 503,905.78 : x
  2. Step 2: Convert to fraction form
    634,295.46/874,480.97 = 503,905.78/x
  3. Step 3: Cross multiply
    634,295.46x = 874,480.97 × 503,905.78
  4. Step 4: Simplify right side
    634,295.46x = 440,656,015,283.01
  5. Step 5: Solve for x
    x = 440,656,015,283.01/634,295.46
  6. Step 6: Final answer
    x = 694,717.28

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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.