Home / 639,106.47-881,966.27-352,626.53

Finding the Fourth Proportional to 639,106.47, 881,966.27 and 352,626.53

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Solution

The fourth proportional to 639,106.47, 881,966.27 and 352,626.53 is: 486,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,106.47 : 881,966.27 = 352,626.53 : x
  2. Step 2: Convert to fraction form
    639,106.47/881,966.27 = 352,626.53/x
  3. Step 3: Cross multiply
    639,106.47x = 881,966.27 × 352,626.53
  4. Step 4: Simplify right side
    639,106.47x = 311,004,703,604.01
  5. Step 5: Solve for x
    x = 311,004,703,604.01/639,106.47
  6. Step 6: Final answer
    x = 486,624.25

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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.