Home / 638,349.47-880,922.04-351,874.34

Finding the Fourth Proportional to 638,349.47, 880,922.04 and 351,874.34

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Solution

The fourth proportional to 638,349.47, 880,922.04 and 351,874.34 is: 485,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,349.47 : 880,922.04 = 351,874.34 : x
  2. Step 2: Convert to fraction form
    638,349.47/880,922.04 = 351,874.34/x
  3. Step 3: Cross multiply
    638,349.47x = 880,922.04 × 351,874.34
  4. Step 4: Simplify right side
    638,349.47x = 309,973,857,011.84
  5. Step 5: Solve for x
    x = 309,973,857,011.84/638,349.47
  6. Step 6: Final answer
    x = 485,586.46

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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.