Home / 743,476-1,112,801.20-401,443.95

Finding the Fourth Proportional to 743,476, 1,112,801.20 and 401,443.95

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Solution

The fourth proportional to 743,476, 1,112,801.20 and 401,443.95 is: 600,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,476 : 1,112,801.20 = 401,443.95 : x
  2. Step 2: Convert to fraction form
    743,476/1,112,801.20 = 401,443.95/x
  3. Step 3: Cross multiply
    743,476x = 1,112,801.20 × 401,443.95
  4. Step 4: Simplify right side
    743,476x = 446,727,309,292.74
  5. Step 5: Solve for x
    x = 446,727,309,292.74/743,476
  6. Step 6: Final answer
    x = 600,863.12

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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.