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Finding the Fourth Proportional to 486,151.44, 670,675.38 and 463,639

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Solution

The fourth proportional to 486,151.44, 670,675.38 and 463,639 is: 639,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,151.44 : 670,675.38 = 463,639 : x
  2. Step 2: Convert to fraction form
    486,151.44/670,675.38 = 463,639/x
  3. Step 3: Cross multiply
    486,151.44x = 670,675.38 × 463,639
  4. Step 4: Simplify right side
    486,151.44x = 310,951,262,507.82
  5. Step 5: Solve for x
    x = 310,951,262,507.82/486,151.44
  6. Step 6: Final answer
    x = 639,618.10

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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.