Home / 429,739.02-644,426.28-204,839.28

Finding the Fourth Proportional to 429,739.02, 644,426.28 and 204,839.28

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Solution

The fourth proportional to 429,739.02, 644,426.28 and 204,839.28 is: 307,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,739.02 : 644,426.28 = 204,839.28 : x
  2. Step 2: Convert to fraction form
    429,739.02/644,426.28 = 204,839.28/x
  3. Step 3: Cross multiply
    429,739.02x = 644,426.28 × 204,839.28
  4. Step 4: Simplify right side
    429,739.02x = 132,003,815,208.28
  5. Step 5: Solve for x
    x = 132,003,815,208.28/429,739.02
  6. Step 6: Final answer
    x = 307,172.05

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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.