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Finding the Fourth Proportional to 651,469.56, 898,655.32 and 379,508.80

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Solution

The fourth proportional to 651,469.56, 898,655.32 and 379,508.80 is: 523,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,469.56 : 898,655.32 = 379,508.80 : x
  2. Step 2: Convert to fraction form
    651,469.56/898,655.32 = 379,508.80/x
  3. Step 3: Cross multiply
    651,469.56x = 898,655.32 × 379,508.80
  4. Step 4: Simplify right side
    651,469.56x = 341,047,602,106.82
  5. Step 5: Solve for x
    x = 341,047,602,106.82/651,469.56
  6. Step 6: Final answer
    x = 523,505.05

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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.