Home / 780,985.41-1,171,503.89-268,645.41

Finding the Fourth Proportional to 780,985.41, 1,171,503.89 and 268,645.41

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Solution

The fourth proportional to 780,985.41, 1,171,503.89 and 268,645.41 is: 402,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,985.41 : 1,171,503.89 = 268,645.41 : x
  2. Step 2: Convert to fraction form
    780,985.41/1,171,503.89 = 268,645.41/x
  3. Step 3: Cross multiply
    780,985.41x = 1,171,503.89 × 268,645.41
  4. Step 4: Simplify right side
    780,985.41x = 314,719,144,020.97
  5. Step 5: Solve for x
    x = 314,719,144,020.97/780,985.41
  6. Step 6: Final answer
    x = 402,976.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.