Home / 379,830.42-524,175.17-207,764.55

Finding the Fourth Proportional to 379,830.42, 524,175.17 and 207,764.55

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Solution

The fourth proportional to 379,830.42, 524,175.17 and 207,764.55 is: 286,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,830.42 : 524,175.17 = 207,764.55 : x
  2. Step 2: Convert to fraction form
    379,830.42/524,175.17 = 207,764.55/x
  3. Step 3: Cross multiply
    379,830.42x = 524,175.17 × 207,764.55
  4. Step 4: Simplify right side
    379,830.42x = 108,905,017,277.40
  5. Step 5: Solve for x
    x = 108,905,017,277.40/379,830.42
  6. Step 6: Final answer
    x = 286,720.10

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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.