Home / 764,457.28-1,051,443.84-613,222.72

Finding the Fourth Proportional to 764,457.28, 1,051,443.84 and 613,222.72

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Solution

The fourth proportional to 764,457.28, 1,051,443.84 and 613,222.72 is: 843,433.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,457.28 : 1,051,443.84 = 613,222.72 : x
  2. Step 2: Convert to fraction form
    764,457.28/1,051,443.84 = 613,222.72/x
  3. Step 3: Cross multiply
    764,457.28x = 1,051,443.84 × 613,222.72
  4. Step 4: Simplify right side
    764,457.28x = 644,769,251,492.05
  5. Step 5: Solve for x
    x = 644,769,251,492.05/764,457.28
  6. Step 6: Final answer
    x = 843,433.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.