Home / 764,233.60-1,143,628.80-665,478.40

Finding the Fourth Proportional to 764,233.60, 1,143,628.80 and 665,478.40

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Solution

The fourth proportional to 764,233.60, 1,143,628.80 and 665,478.40 is: 995,847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,233.60 : 1,143,628.80 = 665,478.40 : x
  2. Step 2: Convert to fraction form
    764,233.60/1,143,628.80 = 665,478.40/x
  3. Step 3: Cross multiply
    764,233.60x = 1,143,628.80 × 665,478.40
  4. Step 4: Simplify right side
    764,233.60x = 761,060,264,017.92
  5. Step 5: Solve for x
    x = 761,060,264,017.92/764,233.60
  6. Step 6: Final answer
    x = 995,847.69

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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.