Home / 638,366.58-880,998.93-351,942.66

Finding the Fourth Proportional to 638,366.58, 880,998.93 and 351,942.66

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Solution

The fourth proportional to 638,366.58, 880,998.93 and 351,942.66 is: 485,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,366.58 : 880,998.93 = 351,942.66 : x
  2. Step 2: Convert to fraction form
    638,366.58/880,998.93 = 351,942.66/x
  3. Step 3: Cross multiply
    638,366.58x = 880,998.93 × 351,942.66
  4. Step 4: Simplify right side
    638,366.58x = 310,061,106,881.35
  5. Step 5: Solve for x
    x = 310,061,106,881.35/638,366.58
  6. Step 6: Final answer
    x = 485,710.12

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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.