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Finding the Fourth Proportional to 636,557.57, 878,431.94 and 350,077.67

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Solution

The fourth proportional to 636,557.57, 878,431.94 and 350,077.67 is: 483,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,557.57 : 878,431.94 = 350,077.67 : x
  2. Step 2: Convert to fraction form
    636,557.57/878,431.94 = 350,077.67/x
  3. Step 3: Cross multiply
    636,557.57x = 878,431.94 × 350,077.67
  4. Step 4: Simplify right side
    636,557.57x = 307,519,405,058.39
  5. Step 5: Solve for x
    x = 307,519,405,058.39/636,557.57
  6. Step 6: Final answer
    x = 483,097.55

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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.