Home / 1,214,839.60-1,822,259.40-978,643.60

Finding the Fourth Proportional to 1,214,839.60, 1,822,259.40 and 978,643.60

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Solution

The fourth proportional to 1,214,839.60, 1,822,259.40 and 978,643.60 is: 1,467,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,839.60 : 1,822,259.40 = 978,643.60 : x
  2. Step 2: Convert to fraction form
    1,214,839.60/1,822,259.40 = 978,643.60/x
  3. Step 3: Cross multiply
    1,214,839.60x = 1,822,259.40 × 978,643.60
  4. Step 4: Simplify right side
    1,214,839.60x = 1,783,342,499,349.84
  5. Step 5: Solve for x
    x = 1,783,342,499,349.84/1,214,839.60
  6. Step 6: Final answer
    x = 1,467,965.40

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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.