Home / 1,103,805.84-1,655,388.96-429,736.92

Finding the Fourth Proportional to 1,103,805.84, 1,655,388.96 and 429,736.92

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Solution

The fourth proportional to 1,103,805.84, 1,655,388.96 and 429,736.92 is: 644,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,805.84 : 1,655,388.96 = 429,736.92 : x
  2. Step 2: Convert to fraction form
    1,103,805.84/1,655,388.96 = 429,736.92/x
  3. Step 3: Cross multiply
    1,103,805.84x = 1,655,388.96 × 429,736.92
  4. Step 4: Simplify right side
    1,103,805.84x = 711,381,753,072.40
  5. Step 5: Solve for x
    x = 711,381,753,072.40/1,103,805.84
  6. Step 6: Final answer
    x = 644,480.87

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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.