Home / 638,423.73-881,027.42-351,937.53

Finding the Fourth Proportional to 638,423.73, 881,027.42 and 351,937.53

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Solution

The fourth proportional to 638,423.73, 881,027.42 and 351,937.53 is: 485,675.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,423.73 : 881,027.42 = 351,937.53 : x
  2. Step 2: Convert to fraction form
    638,423.73/881,027.42 = 351,937.53/x
  3. Step 3: Cross multiply
    638,423.73x = 881,027.42 × 351,937.53
  4. Step 4: Simplify right side
    638,423.73x = 310,066,612,297.39
  5. Step 5: Solve for x
    x = 310,066,612,297.39/638,423.73
  6. Step 6: Final answer
    x = 485,675.26

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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.