Home / 1,068,822.40-1,600,123.20-647,881.60

Finding the Fourth Proportional to 1,068,822.40, 1,600,123.20 and 647,881.60

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Solution

The fourth proportional to 1,068,822.40, 1,600,123.20 and 647,881.60 is: 969,936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,822.40 : 1,600,123.20 = 647,881.60 : x
  2. Step 2: Convert to fraction form
    1,068,822.40/1,600,123.20 = 647,881.60/x
  3. Step 3: Cross multiply
    1,068,822.40x = 1,600,123.20 × 647,881.60
  4. Step 4: Simplify right side
    1,068,822.40x = 1,036,690,379,013.12
  5. Step 5: Solve for x
    x = 1,036,690,379,013.12/1,068,822.40
  6. Step 6: Final answer
    x = 969,936.99

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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.