Home / 743,386.78-1,025,874.67-403,855.03

Finding the Fourth Proportional to 743,386.78, 1,025,874.67 and 403,855.03

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Solution

The fourth proportional to 743,386.78, 1,025,874.67 and 403,855.03 is: 557,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,386.78 : 1,025,874.67 = 403,855.03 : x
  2. Step 2: Convert to fraction form
    743,386.78/1,025,874.67 = 403,855.03/x
  3. Step 3: Cross multiply
    743,386.78x = 1,025,874.67 × 403,855.03
  4. Step 4: Simplify right side
    743,386.78x = 414,304,646,659.02
  5. Step 5: Solve for x
    x = 414,304,646,659.02/743,386.78
  6. Step 6: Final answer
    x = 557,320.44

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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.