Home / 643,927.74-888,575.82-357,425.27

Finding the Fourth Proportional to 643,927.74, 888,575.82 and 357,425.27

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Solution

The fourth proportional to 643,927.74, 888,575.82 and 357,425.27 is: 493,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,927.74 : 888,575.82 = 357,425.27 : x
  2. Step 2: Convert to fraction form
    643,927.74/888,575.82 = 357,425.27/x
  3. Step 3: Cross multiply
    643,927.74x = 888,575.82 × 357,425.27
  4. Step 4: Simplify right side
    643,927.74x = 317,599,452,378.97
  5. Step 5: Solve for x
    x = 317,599,452,378.97/643,927.74
  6. Step 6: Final answer
    x = 493,222.19

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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.