Home / 1,387,206.40-2,080,809.60-889,542.40

Finding the Fourth Proportional to 1,387,206.40, 2,080,809.60 and 889,542.40

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Solution

The fourth proportional to 1,387,206.40, 2,080,809.60 and 889,542.40 is: 1,334,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,206.40 : 2,080,809.60 = 889,542.40 : x
  2. Step 2: Convert to fraction form
    1,387,206.40/2,080,809.60 = 889,542.40/x
  3. Step 3: Cross multiply
    1,387,206.40x = 2,080,809.60 × 889,542.40
  4. Step 4: Simplify right side
    1,387,206.40x = 1,850,968,365,527.04
  5. Step 5: Solve for x
    x = 1,850,968,365,527.04/1,387,206.40
  6. Step 6: Final answer
    x = 1,334,313.60

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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.