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Finding the Fourth Proportional to 663,170.93, 915,175.72 and 361,364.93

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Solution

The fourth proportional to 663,170.93, 915,175.72 and 361,364.93 is: 498,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,170.93 : 915,175.72 = 361,364.93 : x
  2. Step 2: Convert to fraction form
    663,170.93/915,175.72 = 361,364.93/x
  3. Step 3: Cross multiply
    663,170.93x = 915,175.72 × 361,364.93
  4. Step 4: Simplify right side
    663,170.93x = 330,712,408,188.68
  5. Step 5: Solve for x
    x = 330,712,408,188.68/663,170.93
  6. Step 6: Final answer
    x = 498,683.51

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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.