Home / 743,178.52-1,025,580.72-403,649.20

Finding the Fourth Proportional to 743,178.52, 1,025,580.72 and 403,649.20

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Solution

The fourth proportional to 743,178.52, 1,025,580.72 and 403,649.20 is: 557,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,178.52 : 1,025,580.72 = 403,649.20 : x
  2. Step 2: Convert to fraction form
    743,178.52/1,025,580.72 = 403,649.20/x
  3. Step 3: Cross multiply
    743,178.52x = 1,025,580.72 × 403,649.20
  4. Step 4: Simplify right side
    743,178.52x = 413,974,837,163.42
  5. Step 5: Solve for x
    x = 413,974,837,163.42/743,178.52
  6. Step 6: Final answer
    x = 557,032.83

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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.