Home / 643,137.46-887,531.73-356,684.02

Finding the Fourth Proportional to 643,137.46, 887,531.73 and 356,684.02

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Solution

The fourth proportional to 643,137.46, 887,531.73 and 356,684.02 is: 492,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,137.46 : 887,531.73 = 356,684.02 : x
  2. Step 2: Convert to fraction form
    643,137.46/887,531.73 = 356,684.02/x
  3. Step 3: Cross multiply
    643,137.46x = 887,531.73 × 356,684.02
  4. Step 4: Simplify right side
    643,137.46x = 316,568,385,333.96
  5. Step 5: Solve for x
    x = 316,568,385,333.96/643,137.46
  6. Step 6: Final answer
    x = 492,225.08

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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.