Home / 638,087.20-880,599.04-351,606.96

Finding the Fourth Proportional to 638,087.20, 880,599.04 and 351,606.96

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Solution

The fourth proportional to 638,087.20, 880,599.04 and 351,606.96 is: 485,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,087.20 : 880,599.04 = 351,606.96 : x
  2. Step 2: Convert to fraction form
    638,087.20/880,599.04 = 351,606.96/x
  3. Step 3: Cross multiply
    638,087.20x = 880,599.04 × 351,606.96
  4. Step 4: Simplify right side
    638,087.20x = 309,624,751,433.32
  5. Step 5: Solve for x
    x = 309,624,751,433.32/638,087.20
  6. Step 6: Final answer
    x = 485,238.93

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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.