Home / 638,950.15-881,753.67-352,466.11

Finding the Fourth Proportional to 638,950.15, 881,753.67 and 352,466.11

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Solution

The fourth proportional to 638,950.15, 881,753.67 and 352,466.11 is: 486,404.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,950.15 : 881,753.67 = 352,466.11 : x
  2. Step 2: Convert to fraction form
    638,950.15/881,753.67 = 352,466.11/x
  3. Step 3: Cross multiply
    638,950.15x = 881,753.67 × 352,466.11
  4. Step 4: Simplify right side
    638,950.15x = 310,788,279,872.03
  5. Step 5: Solve for x
    x = 310,788,279,872.03/638,950.15
  6. Step 6: Final answer
    x = 486,404.58

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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.