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Finding the Fourth Proportional to 442,371.40, 660,556.62 and 351,392.88

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Solution

The fourth proportional to 442,371.40, 660,556.62 and 351,392.88 is: 524,705.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,371.40 : 660,556.62 = 351,392.88 : x
  2. Step 2: Convert to fraction form
    442,371.40/660,556.62 = 351,392.88/x
  3. Step 3: Cross multiply
    442,371.40x = 660,556.62 × 351,392.88
  4. Step 4: Simplify right side
    442,371.40x = 232,114,893,104.87
  5. Step 5: Solve for x
    x = 232,114,893,104.87/442,371.40
  6. Step 6: Final answer
    x = 524,705.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.