Home / 1,565,342.20-2,345,291.70-722,164.60

Finding the Fourth Proportional to 1,565,342.20, 2,345,291.70 and 722,164.60

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Solution

The fourth proportional to 1,565,342.20, 2,345,291.70 and 722,164.60 is: 1,081,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,342.20 : 2,345,291.70 = 722,164.60 : x
  2. Step 2: Convert to fraction form
    1,565,342.20/2,345,291.70 = 722,164.60/x
  3. Step 3: Cross multiply
    1,565,342.20x = 2,345,291.70 × 722,164.60
  4. Step 4: Simplify right side
    1,565,342.20x = 1,693,686,642,413.82
  5. Step 5: Solve for x
    x = 1,693,686,642,413.82/1,565,342.20
  6. Step 6: Final answer
    x = 1,081,991.30

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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.