Home / 818,780.30-1,222,413.12-625,643.90

Finding the Fourth Proportional to 818,780.30, 1,222,413.12 and 625,643.90

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Solution

The fourth proportional to 818,780.30, 1,222,413.12 and 625,643.90 is: 934,066.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,780.30 : 1,222,413.12 = 625,643.90 : x
  2. Step 2: Convert to fraction form
    818,780.30/1,222,413.12 = 625,643.90/x
  3. Step 3: Cross multiply
    818,780.30x = 1,222,413.12 × 625,643.90
  4. Step 4: Simplify right side
    818,780.30x = 764,795,310,279.95
  5. Step 5: Solve for x
    x = 764,795,310,279.95/818,780.30
  6. Step 6: Final answer
    x = 934,066.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.