Home / 762,622.72-1,052,418.95-418,460.87

Finding the Fourth Proportional to 762,622.72, 1,052,418.95 and 418,460.87

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Solution

The fourth proportional to 762,622.72, 1,052,418.95 and 418,460.87 is: 577,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,622.72 : 1,052,418.95 = 418,460.87 : x
  2. Step 2: Convert to fraction form
    762,622.72/1,052,418.95 = 418,460.87/x
  3. Step 3: Cross multiply
    762,622.72x = 1,052,418.95 × 418,460.87
  4. Step 4: Simplify right side
    762,622.72x = 440,396,149,421.49
  5. Step 5: Solve for x
    x = 440,396,149,421.49/762,622.72
  6. Step 6: Final answer
    x = 577,475.78

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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.