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Finding the Fourth Proportional to 988,843.60, 1,483,265.40 and 841,877.20

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Solution

The fourth proportional to 988,843.60, 1,483,265.40 and 841,877.20 is: 1,262,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,843.60 : 1,483,265.40 = 841,877.20 : x
  2. Step 2: Convert to fraction form
    988,843.60/1,483,265.40 = 841,877.20/x
  3. Step 3: Cross multiply
    988,843.60x = 1,483,265.40 × 841,877.20
  4. Step 4: Simplify right side
    988,843.60x = 1,248,727,321,808.88
  5. Step 5: Solve for x
    x = 1,248,727,321,808.88/988,843.60
  6. Step 6: Final answer
    x = 1,262,815.80

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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.