Home / 429,741.02-644,429.28-204,841.28

Finding the Fourth Proportional to 429,741.02, 644,429.28 and 204,841.28

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Solution

The fourth proportional to 429,741.02, 644,429.28 and 204,841.28 is: 307,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,741.02 : 644,429.28 = 204,841.28 : x
  2. Step 2: Convert to fraction form
    429,741.02/644,429.28 = 204,841.28/x
  3. Step 3: Cross multiply
    429,741.02x = 644,429.28 × 204,841.28
  4. Step 4: Simplify right side
    429,741.02x = 132,005,718,584.68
  5. Step 5: Solve for x
    x = 132,005,718,584.68/429,741.02
  6. Step 6: Final answer
    x = 307,175.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.