Home / 805,218.80-1,206,370.20-637,840.40

Finding the Fourth Proportional to 805,218.80, 1,206,370.20 and 637,840.40

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Solution

The fourth proportional to 805,218.80, 1,206,370.20 and 637,840.40 is: 955,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,218.80 : 1,206,370.20 = 637,840.40 : x
  2. Step 2: Convert to fraction form
    805,218.80/1,206,370.20 = 637,840.40/x
  3. Step 3: Cross multiply
    805,218.80x = 1,206,370.20 × 637,840.40
  4. Step 4: Simplify right side
    805,218.80x = 769,471,650,916.08
  5. Step 5: Solve for x
    x = 769,471,650,916.08/805,218.80
  6. Step 6: Final answer
    x = 955,605.67

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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.