Home / 861,375.35-1,292,181.21-292,603.77

Finding the Fourth Proportional to 861,375.35, 1,292,181.21 and 292,603.77

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Solution

The fourth proportional to 861,375.35, 1,292,181.21 and 292,603.77 is: 438,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,375.35 : 1,292,181.21 = 292,603.77 : x
  2. Step 2: Convert to fraction form
    861,375.35/1,292,181.21 = 292,603.77/x
  3. Step 3: Cross multiply
    861,375.35x = 1,292,181.21 × 292,603.77
  4. Step 4: Simplify right side
    861,375.35x = 378,097,093,569.16
  5. Step 5: Solve for x
    x = 378,097,093,569.16/861,375.35
  6. Step 6: Final answer
    x = 438,945.80

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1.5x scale

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.