Home / 1,118,936.60-1,679,868.39-664,357.72

Finding the Fourth Proportional to 1,118,936.60, 1,679,868.39 and 664,357.72

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Solution

The fourth proportional to 1,118,936.60, 1,679,868.39 and 664,357.72 is: 997,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,936.60 : 1,679,868.39 = 664,357.72 : x
  2. Step 2: Convert to fraction form
    1,118,936.60/1,679,868.39 = 664,357.72/x
  3. Step 3: Cross multiply
    1,118,936.60x = 1,679,868.39 × 664,357.72
  4. Step 4: Simplify right side
    1,118,936.60x = 1,116,033,533,480.47
  5. Step 5: Solve for x
    x = 1,116,033,533,480.47/1,118,936.60
  6. Step 6: Final answer
    x = 997,405.51

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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.