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Finding the Fourth Proportional to 662,463.40, 914,123.30 and 375,926.44

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Solution

The fourth proportional to 662,463.40, 914,123.30 and 375,926.44 is: 518,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,463.40 : 914,123.30 = 375,926.44 : x
  2. Step 2: Convert to fraction form
    662,463.40/914,123.30 = 375,926.44/x
  3. Step 3: Cross multiply
    662,463.40x = 914,123.30 × 375,926.44
  4. Step 4: Simplify right side
    662,463.40x = 343,643,117,890.05
  5. Step 5: Solve for x
    x = 343,643,117,890.05/662,463.40
  6. Step 6: Final answer
    x = 518,735.25

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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.