Home / 1,030,620.80-1,545,931.20-764,900.30

Finding the Fourth Proportional to 1,030,620.80, 1,545,931.20 and 764,900.30

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Solution

The fourth proportional to 1,030,620.80, 1,545,931.20 and 764,900.30 is: 1,147,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,620.80 : 1,545,931.20 = 764,900.30 : x
  2. Step 2: Convert to fraction form
    1,030,620.80/1,545,931.20 = 764,900.30/x
  3. Step 3: Cross multiply
    1,030,620.80x = 1,545,931.20 × 764,900.30
  4. Step 4: Simplify right side
    1,030,620.80x = 1,182,483,238,659.36
  5. Step 5: Solve for x
    x = 1,182,483,238,659.36/1,030,620.80
  6. Step 6: Final answer
    x = 1,147,350.45

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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.