Home / 804,923.78-1,110,741.12-442,339.85

Finding the Fourth Proportional to 804,923.78, 1,110,741.12 and 442,339.85

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Solution

The fourth proportional to 804,923.78, 1,110,741.12 and 442,339.85 is: 610,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,923.78 : 1,110,741.12 = 442,339.85 : x
  2. Step 2: Convert to fraction form
    804,923.78/1,110,741.12 = 442,339.85/x
  3. Step 3: Cross multiply
    804,923.78x = 1,110,741.12 × 442,339.85
  4. Step 4: Simplify right side
    804,923.78x = 491,325,060,409.63
  5. Step 5: Solve for x
    x = 491,325,060,409.63/804,923.78
  6. Step 6: Final answer
    x = 610,399.48

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Double scale
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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.