Home / 1,086,909.90-1,632,114.45-820,970.70

Finding the Fourth Proportional to 1,086,909.90, 1,632,114.45 and 820,970.70

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Solution

The fourth proportional to 1,086,909.90, 1,632,114.45 and 820,970.70 is: 1,232,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,909.90 : 1,632,114.45 = 820,970.70 : x
  2. Step 2: Convert to fraction form
    1,086,909.90/1,632,114.45 = 820,970.70/x
  3. Step 3: Cross multiply
    1,086,909.90x = 1,632,114.45 × 820,970.70
  4. Step 4: Simplify right side
    1,086,909.90x = 1,339,918,142,496.62
  5. Step 5: Solve for x
    x = 1,339,918,142,496.62/1,086,909.90
  6. Step 6: Final answer
    x = 1,232,777.57

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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.