Home / 764,110.20-1,146,165.30-386,196.60

Finding the Fourth Proportional to 764,110.20, 1,146,165.30 and 386,196.60

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Solution

The fourth proportional to 764,110.20, 1,146,165.30 and 386,196.60 is: 579,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,110.20 : 1,146,165.30 = 386,196.60 : x
  2. Step 2: Convert to fraction form
    764,110.20/1,146,165.30 = 386,196.60/x
  3. Step 3: Cross multiply
    764,110.20x = 1,146,165.30 × 386,196.60
  4. Step 4: Simplify right side
    764,110.20x = 442,645,141,897.98
  5. Step 5: Solve for x
    x = 442,645,141,897.98/764,110.20
  6. Step 6: Final answer
    x = 579,294.90

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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.