Home / 1,188,260-1,639,799.60-644,395.62

Finding the Fourth Proportional to 1,188,260, 1,639,799.60 and 644,395.62

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Solution

The fourth proportional to 1,188,260, 1,639,799.60 and 644,395.62 is: 889,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,260 : 1,639,799.60 = 644,395.62 : x
  2. Step 2: Convert to fraction form
    1,188,260/1,639,799.60 = 644,395.62/x
  3. Step 3: Cross multiply
    1,188,260x = 1,639,799.60 × 644,395.62
  4. Step 4: Simplify right side
    1,188,260x = 1,056,679,679,917.75
  5. Step 5: Solve for x
    x = 1,056,679,679,917.75/1,188,260
  6. Step 6: Final answer
    x = 889,266.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.