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Finding the Fourth Proportional to 659,725.40, 910,506.90 and 369,447.62

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Solution

The fourth proportional to 659,725.40, 910,506.90 and 369,447.62 is: 509,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,725.40 : 910,506.90 = 369,447.62 : x
  2. Step 2: Convert to fraction form
    659,725.40/910,506.90 = 369,447.62/x
  3. Step 3: Cross multiply
    659,725.40x = 910,506.90 × 369,447.62
  4. Step 4: Simplify right side
    659,725.40x = 336,384,607,198.58
  5. Step 5: Solve for x
    x = 336,384,607,198.58/659,725.40
  6. Step 6: Final answer
    x = 509,885.79

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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.