Home / 766,129.70-1,147,444.95-451,201.70

Finding the Fourth Proportional to 766,129.70, 1,147,444.95 and 451,201.70

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Solution

The fourth proportional to 766,129.70, 1,147,444.95 and 451,201.70 is: 675,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,129.70 : 1,147,444.95 = 451,201.70 : x
  2. Step 2: Convert to fraction form
    766,129.70/1,147,444.95 = 451,201.70/x
  3. Step 3: Cross multiply
    766,129.70x = 1,147,444.95 × 451,201.70
  4. Step 4: Simplify right side
    766,129.70x = 517,729,112,096.42
  5. Step 5: Solve for x
    x = 517,729,112,096.42/766,129.70
  6. Step 6: Final answer
    x = 675,772.15

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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.