Home / 987,387.60-1,481,081.40-910,405.20

Finding the Fourth Proportional to 987,387.60, 1,481,081.40 and 910,405.20

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Solution

The fourth proportional to 987,387.60, 1,481,081.40 and 910,405.20 is: 1,365,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,387.60 : 1,481,081.40 = 910,405.20 : x
  2. Step 2: Convert to fraction form
    987,387.60/1,481,081.40 = 910,405.20/x
  3. Step 3: Cross multiply
    987,387.60x = 1,481,081.40 × 910,405.20
  4. Step 4: Simplify right side
    987,387.60x = 1,348,384,208,183.28
  5. Step 5: Solve for x
    x = 1,348,384,208,183.28/987,387.60
  6. Step 6: Final answer
    x = 1,365,607.80

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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.