Home / 819,807.50-1,229,868.87-314,329.06

Finding the Fourth Proportional to 819,807.50, 1,229,868.87 and 314,329.06

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Solution

The fourth proportional to 819,807.50, 1,229,868.87 and 314,329.06 is: 471,554.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,807.50 : 1,229,868.87 = 314,329.06 : x
  2. Step 2: Convert to fraction form
    819,807.50/1,229,868.87 = 314,329.06/x
  3. Step 3: Cross multiply
    819,807.50x = 1,229,868.87 × 314,329.06
  4. Step 4: Simplify right side
    819,807.50x = 386,583,526,188.96
  5. Step 5: Solve for x
    x = 386,583,526,188.96/819,807.50
  6. Step 6: Final answer
    x = 471,554.02

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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.