Home / 509,382.83-764,100.40-130,306.84

Finding the Fourth Proportional to 509,382.83, 764,100.40 and 130,306.84

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Solution

The fourth proportional to 509,382.83, 764,100.40 and 130,306.84 is: 195,466.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,382.83 : 764,100.40 = 130,306.84 : x
  2. Step 2: Convert to fraction form
    509,382.83/764,100.40 = 130,306.84/x
  3. Step 3: Cross multiply
    509,382.83x = 764,100.40 × 130,306.84
  4. Step 4: Simplify right side
    509,382.83x = 99,567,510,559.69
  5. Step 5: Solve for x
    x = 99,567,510,559.69/509,382.83
  6. Step 6: Final answer
    x = 195,466.96

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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.