Home / 1,387,458.40-2,081,187.60-889,794.40

Finding the Fourth Proportional to 1,387,458.40, 2,081,187.60 and 889,794.40

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Solution

The fourth proportional to 1,387,458.40, 2,081,187.60 and 889,794.40 is: 1,334,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,458.40 : 2,081,187.60 = 889,794.40 : x
  2. Step 2: Convert to fraction form
    1,387,458.40/2,081,187.60 = 889,794.40/x
  3. Step 3: Cross multiply
    1,387,458.40x = 2,081,187.60 × 889,794.40
  4. Step 4: Simplify right side
    1,387,458.40x = 1,851,829,071,829.44
  5. Step 5: Solve for x
    x = 1,851,829,071,829.44/1,387,458.40
  6. Step 6: Final answer
    x = 1,334,691.60

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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.