Home / 757,280.40-1,134,538.20-461,446.80

Finding the Fourth Proportional to 757,280.40, 1,134,538.20 and 461,446.80

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Solution

The fourth proportional to 757,280.40, 1,134,538.20 and 461,446.80 is: 691,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,280.40 : 1,134,538.20 = 461,446.80 : x
  2. Step 2: Convert to fraction form
    757,280.40/1,134,538.20 = 461,446.80/x
  3. Step 3: Cross multiply
    757,280.40x = 1,134,538.20 × 461,446.80
  4. Step 4: Simplify right side
    757,280.40x = 523,529,021,867.76
  5. Step 5: Solve for x
    x = 523,529,021,867.76/757,280.40
  6. Step 6: Final answer
    x = 691,327.84

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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.