Home / 643,927.62-888,575.67-357,425.16

Finding the Fourth Proportional to 643,927.62, 888,575.67 and 357,425.16

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Solution

The fourth proportional to 643,927.62, 888,575.67 and 357,425.16 is: 493,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,927.62 : 888,575.67 = 357,425.16 : x
  2. Step 2: Convert to fraction form
    643,927.62/888,575.67 = 357,425.16/x
  3. Step 3: Cross multiply
    643,927.62x = 888,575.67 × 357,425.16
  4. Step 4: Simplify right side
    643,927.62x = 317,599,297,689.70
  5. Step 5: Solve for x
    x = 317,599,297,689.70/643,927.62
  6. Step 6: Final answer
    x = 493,222.04

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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.