Home / 639,106.59-881,966.44-352,626.65

Finding the Fourth Proportional to 639,106.59, 881,966.44 and 352,626.65

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Solution

The fourth proportional to 639,106.59, 881,966.44 and 352,626.65 is: 486,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,106.59 : 881,966.44 = 352,626.65 : x
  2. Step 2: Convert to fraction form
    639,106.59/881,966.44 = 352,626.65/x
  3. Step 3: Cross multiply
    639,106.59x = 881,966.44 × 352,626.65
  4. Step 4: Simplify right side
    639,106.59x = 311,004,871,149.63
  5. Step 5: Solve for x
    x = 311,004,871,149.63/639,106.59
  6. Step 6: Final answer
    x = 486,624.42

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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.