Home / 1,314,205.80-1,970,847.90-682,909.80

Finding the Fourth Proportional to 1,314,205.80, 1,970,847.90 and 682,909.80

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Solution

The fourth proportional to 1,314,205.80, 1,970,847.90 and 682,909.80 is: 1,024,125.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,205.80 : 1,970,847.90 = 682,909.80 : x
  2. Step 2: Convert to fraction form
    1,314,205.80/1,970,847.90 = 682,909.80/x
  3. Step 3: Cross multiply
    1,314,205.80x = 1,970,847.90 × 682,909.80
  4. Step 4: Simplify right side
    1,314,205.80x = 1,345,911,345,219.42
  5. Step 5: Solve for x
    x = 1,345,911,345,219.42/1,314,205.80
  6. Step 6: Final answer
    x = 1,024,125.25

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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.