Home / 743,374.80-1,025,806.68-403,835.76

Finding the Fourth Proportional to 743,374.80, 1,025,806.68 and 403,835.76

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Solution

The fourth proportional to 743,374.80, 1,025,806.68 and 403,835.76 is: 557,265.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,374.80 : 1,025,806.68 = 403,835.76 : x
  2. Step 2: Convert to fraction form
    743,374.80/1,025,806.68 = 403,835.76/x
  3. Step 3: Cross multiply
    743,374.80x = 1,025,806.68 × 403,835.76
  4. Step 4: Simplify right side
    743,374.80x = 414,257,420,230.88
  5. Step 5: Solve for x
    x = 414,257,420,230.88/743,374.80
  6. Step 6: Final answer
    x = 557,265.89

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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.