Home / 743,412.18-1,025,906.13-403,877.46

Finding the Fourth Proportional to 743,412.18, 1,025,906.13 and 403,877.46

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Solution

The fourth proportional to 743,412.18, 1,025,906.13 and 403,877.46 is: 557,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,412.18 : 1,025,906.13 = 403,877.46 : x
  2. Step 2: Convert to fraction form
    743,412.18/1,025,906.13 = 403,877.46/x
  3. Step 3: Cross multiply
    743,412.18x = 1,025,906.13 × 403,877.46
  4. Step 4: Simplify right side
    743,412.18x = 414,340,361,982.83
  5. Step 5: Solve for x
    x = 414,340,361,982.83/743,412.18
  6. Step 6: Final answer
    x = 557,349.44

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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.