Home / 509,659.76-764,471.93-130,583.64

Finding the Fourth Proportional to 509,659.76, 764,471.93 and 130,583.64

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Solution

The fourth proportional to 509,659.76, 764,471.93 and 130,583.64 is: 195,870.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,659.76 : 764,471.93 = 130,583.64 : x
  2. Step 2: Convert to fraction form
    509,659.76/764,471.93 = 130,583.64/x
  3. Step 3: Cross multiply
    509,659.76x = 764,471.93 × 130,583.64
  4. Step 4: Simplify right side
    509,659.76x = 99,827,529,511.08
  5. Step 5: Solve for x
    x = 99,827,529,511.08/509,659.76
  6. Step 6: Final answer
    x = 195,870.93

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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.