Home / 509,786.52-764,548.56-210,352.20

Finding the Fourth Proportional to 509,786.52, 764,548.56 and 210,352.20

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Solution

The fourth proportional to 509,786.52, 764,548.56 and 210,352.20 is: 315,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,786.52 : 764,548.56 = 210,352.20 : x
  2. Step 2: Convert to fraction form
    509,786.52/764,548.56 = 210,352.20/x
  3. Step 3: Cross multiply
    509,786.52x = 764,548.56 × 210,352.20
  4. Step 4: Simplify right side
    509,786.52x = 160,824,471,602.83
  5. Step 5: Solve for x
    x = 160,824,471,602.83/509,786.52
  6. Step 6: Final answer
    x = 315,474.15

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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.