Home / 764,057.73-1,145,692.76-342,972.93

Finding the Fourth Proportional to 764,057.73, 1,145,692.76 and 342,972.93

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Solution

The fourth proportional to 764,057.73, 1,145,692.76 and 342,972.93 is: 514,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,057.73 : 1,145,692.76 = 342,972.93 : x
  2. Step 2: Convert to fraction form
    764,057.73/1,145,692.76 = 342,972.93/x
  3. Step 3: Cross multiply
    764,057.73x = 1,145,692.76 × 342,972.93
  4. Step 4: Simplify right side
    764,057.73x = 392,941,601,062.12
  5. Step 5: Solve for x
    x = 392,941,601,062.12/764,057.73
  6. Step 6: Final answer
    x = 514,282.61

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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.