Home / 766,470.54-1,149,840.87-316,939.53

Finding the Fourth Proportional to 766,470.54, 1,149,840.87 and 316,939.53

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Solution

The fourth proportional to 766,470.54, 1,149,840.87 and 316,939.53 is: 475,465.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,470.54 : 1,149,840.87 = 316,939.53 : x
  2. Step 2: Convert to fraction form
    766,470.54/1,149,840.87 = 316,939.53/x
  3. Step 3: Cross multiply
    766,470.54x = 1,149,840.87 × 316,939.53
  4. Step 4: Simplify right side
    766,470.54x = 364,430,024,912.59
  5. Step 5: Solve for x
    x = 364,430,024,912.59/766,470.54
  6. Step 6: Final answer
    x = 475,465.14

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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.