Home / 2,078,781.60-3,118,172.40-816,189.60

Finding the Fourth Proportional to 2,078,781.60, 3,118,172.40 and 816,189.60

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Solution

The fourth proportional to 2,078,781.60, 3,118,172.40 and 816,189.60 is: 1,224,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,781.60 : 3,118,172.40 = 816,189.60 : x
  2. Step 2: Convert to fraction form
    2,078,781.60/3,118,172.40 = 816,189.60/x
  3. Step 3: Cross multiply
    2,078,781.60x = 3,118,172.40 × 816,189.60
  4. Step 4: Simplify right side
    2,078,781.60x = 2,545,019,883,887.04
  5. Step 5: Solve for x
    x = 2,545,019,883,887.04/2,078,781.60
  6. Step 6: Final answer
    x = 1,224,284.40

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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.