Home / 830,515.76-1,245,655.38-261,823.04

Finding the Fourth Proportional to 830,515.76, 1,245,655.38 and 261,823.04

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Solution

The fourth proportional to 830,515.76, 1,245,655.38 and 261,823.04 is: 392,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,515.76 : 1,245,655.38 = 261,823.04 : x
  2. Step 2: Convert to fraction form
    830,515.76/1,245,655.38 = 261,823.04/x
  3. Step 3: Cross multiply
    830,515.76x = 1,245,655.38 × 261,823.04
  4. Step 4: Simplify right side
    830,515.76x = 326,141,278,383.96
  5. Step 5: Solve for x
    x = 326,141,278,383.96/830,515.76
  6. Step 6: Final answer
    x = 392,697.28

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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.