Home / 429,269.64-643,642.02-204,698.76

Finding the Fourth Proportional to 429,269.64, 643,642.02 and 204,698.76

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Solution

The fourth proportional to 429,269.64, 643,642.02 and 204,698.76 is: 306,922.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,269.64 : 643,642.02 = 204,698.76 : x
  2. Step 2: Convert to fraction form
    429,269.64/643,642.02 = 204,698.76/x
  3. Step 3: Cross multiply
    429,269.64x = 643,642.02 × 204,698.76
  4. Step 4: Simplify right side
    429,269.64x = 131,752,723,377.90
  5. Step 5: Solve for x
    x = 131,752,723,377.90/429,269.64
  6. Step 6: Final answer
    x = 306,922.99

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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.