Home / 1,388,539.44-1,915,413.30-807,697.14

Finding the Fourth Proportional to 1,388,539.44, 1,915,413.30 and 807,697.14

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Solution

The fourth proportional to 1,388,539.44, 1,915,413.30 and 807,697.14 is: 1,114,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,539.44 : 1,915,413.30 = 807,697.14 : x
  2. Step 2: Convert to fraction form
    1,388,539.44/1,915,413.30 = 807,697.14/x
  3. Step 3: Cross multiply
    1,388,539.44x = 1,915,413.30 × 807,697.14
  4. Step 4: Simplify right side
    1,388,539.44x = 1,547,073,844,327.96
  5. Step 5: Solve for x
    x = 1,547,073,844,327.96/1,388,539.44
  6. Step 6: Final answer
    x = 1,114,173.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.