Home / 1,314,005.10-1,971,007.65-1,188,033.90

Finding the Fourth Proportional to 1,314,005.10, 1,971,007.65 and 1,188,033.90

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Solution

The fourth proportional to 1,314,005.10, 1,971,007.65 and 1,188,033.90 is: 1,782,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,005.10 : 1,971,007.65 = 1,188,033.90 : x
  2. Step 2: Convert to fraction form
    1,314,005.10/1,971,007.65 = 1,188,033.90/x
  3. Step 3: Cross multiply
    1,314,005.10x = 1,971,007.65 × 1,188,033.90
  4. Step 4: Simplify right side
    1,314,005.10x = 2,341,623,905,359.33
  5. Step 5: Solve for x
    x = 2,341,623,905,359.33/1,314,005.10
  6. Step 6: Final answer
    x = 1,782,050.85

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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.