Home / 762,621.72-1,052,417.57-418,459.87

Finding the Fourth Proportional to 762,621.72, 1,052,417.57 and 418,459.87

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Solution

The fourth proportional to 762,621.72, 1,052,417.57 and 418,459.87 is: 577,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,621.72 : 1,052,417.57 = 418,459.87 : x
  2. Step 2: Convert to fraction form
    762,621.72/1,052,417.57 = 418,459.87/x
  3. Step 3: Cross multiply
    762,621.72x = 1,052,417.57 × 418,459.87
  4. Step 4: Simplify right side
    762,621.72x = 440,394,519,527.92
  5. Step 5: Solve for x
    x = 440,394,519,527.92/762,621.72
  6. Step 6: Final answer
    x = 577,474.40

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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.