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Finding the Fourth Proportional to 636,554.84, 878,428.13 and 350,074.94

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Solution

The fourth proportional to 636,554.84, 878,428.13 and 350,074.94 is: 483,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,554.84 : 878,428.13 = 350,074.94 : x
  2. Step 2: Convert to fraction form
    636,554.84/878,428.13 = 350,074.94/x
  3. Step 3: Cross multiply
    636,554.84x = 878,428.13 × 350,074.94
  4. Step 4: Simplify right side
    636,554.84x = 307,515,668,761.55
  5. Step 5: Solve for x
    x = 307,515,668,761.55/636,554.84
  6. Step 6: Final answer
    x = 483,093.76

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1.5x scale

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.