Home / 702,905.64-1,053,348.78-399,540.84

Finding the Fourth Proportional to 702,905.64, 1,053,348.78 and 399,540.84

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Solution

The fourth proportional to 702,905.64, 1,053,348.78 and 399,540.84 is: 598,737.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,905.64 : 1,053,348.78 = 399,540.84 : x
  2. Step 2: Convert to fraction form
    702,905.64/1,053,348.78 = 399,540.84/x
  3. Step 3: Cross multiply
    702,905.64x = 1,053,348.78 × 399,540.84
  4. Step 4: Simplify right side
    702,905.64x = 420,855,856,374.18
  5. Step 5: Solve for x
    x = 420,855,856,374.18/702,905.64
  6. Step 6: Final answer
    x = 598,737.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.