Home / 779,083.25-1,170,679.80-419,519.95

Finding the Fourth Proportional to 779,083.25, 1,170,679.80 and 419,519.95

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Solution

The fourth proportional to 779,083.25, 1,170,679.80 and 419,519.95 is: 630,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,083.25 : 1,170,679.80 = 419,519.95 : x
  2. Step 2: Convert to fraction form
    779,083.25/1,170,679.80 = 419,519.95/x
  3. Step 3: Cross multiply
    779,083.25x = 1,170,679.80 × 419,519.95
  4. Step 4: Simplify right side
    779,083.25x = 491,123,528,235.31
  5. Step 5: Solve for x
    x = 491,123,528,235.31/779,083.25
  6. Step 6: Final answer
    x = 630,386.45

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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.