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Finding the Fourth Proportional to 987,336.60, 1,481,004.90 and 910,354.20

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Solution

The fourth proportional to 987,336.60, 1,481,004.90 and 910,354.20 is: 1,365,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,336.60 : 1,481,004.90 = 910,354.20 : x
  2. Step 2: Convert to fraction form
    987,336.60/1,481,004.90 = 910,354.20/x
  3. Step 3: Cross multiply
    987,336.60x = 1,481,004.90 × 910,354.20
  4. Step 4: Simplify right side
    987,336.60x = 1,348,239,030,935.58
  5. Step 5: Solve for x
    x = 1,348,239,030,935.58/987,336.60
  6. Step 6: Final answer
    x = 1,365,531.30

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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.