Home / 1,188,009.40-1,781,226.90-655,785.40

Finding the Fourth Proportional to 1,188,009.40, 1,781,226.90 and 655,785.40

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Solution

The fourth proportional to 1,188,009.40, 1,781,226.90 and 655,785.40 is: 983,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,009.40 : 1,781,226.90 = 655,785.40 : x
  2. Step 2: Convert to fraction form
    1,188,009.40/1,781,226.90 = 655,785.40/x
  3. Step 3: Cross multiply
    1,188,009.40x = 1,781,226.90 × 655,785.40
  4. Step 4: Simplify right side
    1,188,009.40x = 1,168,102,595,107.26
  5. Step 5: Solve for x
    x = 1,168,102,595,107.26/1,188,009.40
  6. Step 6: Final answer
    x = 983,243.56

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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.