Home / 764,137.80-1,145,528.73-384,562.08

Finding the Fourth Proportional to 764,137.80, 1,145,528.73 and 384,562.08

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Solution

The fourth proportional to 764,137.80, 1,145,528.73 and 384,562.08 is: 576,501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,137.80 : 1,145,528.73 = 384,562.08 : x
  2. Step 2: Convert to fraction form
    764,137.80/1,145,528.73 = 384,562.08/x
  3. Step 3: Cross multiply
    764,137.80x = 1,145,528.73 × 384,562.08
  4. Step 4: Simplify right side
    764,137.80x = 440,526,911,108.56
  5. Step 5: Solve for x
    x = 440,526,911,108.56/764,137.80
  6. Step 6: Final answer
    x = 576,501.92

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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.