Home / 855,811.20-1,284,638.40-482,563.20

Finding the Fourth Proportional to 855,811.20, 1,284,638.40 and 482,563.20

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Solution

The fourth proportional to 855,811.20, 1,284,638.40 and 482,563.20 is: 724,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,811.20 : 1,284,638.40 = 482,563.20 : x
  2. Step 2: Convert to fraction form
    855,811.20/1,284,638.40 = 482,563.20/x
  3. Step 3: Cross multiply
    855,811.20x = 1,284,638.40 × 482,563.20
  4. Step 4: Simplify right side
    855,811.20x = 619,919,217,146.88
  5. Step 5: Solve for x
    x = 619,919,217,146.88/855,811.20
  6. Step 6: Final answer
    x = 724,364.46

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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.