Home / 854,268.80-1,281,403.20-688,380.80

Finding the Fourth Proportional to 854,268.80, 1,281,403.20 and 688,380.80

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Solution

The fourth proportional to 854,268.80, 1,281,403.20 and 688,380.80 is: 1,032,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,268.80 : 1,281,403.20 = 688,380.80 : x
  2. Step 2: Convert to fraction form
    854,268.80/1,281,403.20 = 688,380.80/x
  3. Step 3: Cross multiply
    854,268.80x = 1,281,403.20 × 688,380.80
  4. Step 4: Simplify right side
    854,268.80x = 882,093,359,938.56
  5. Step 5: Solve for x
    x = 882,093,359,938.56/854,268.80
  6. Step 6: Final answer
    x = 1,032,571.20

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1.5x scale

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.