Home / 855,904.40-1,283,856.60-323,442.80

Finding the Fourth Proportional to 855,904.40, 1,283,856.60 and 323,442.80

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Solution

The fourth proportional to 855,904.40, 1,283,856.60 and 323,442.80 is: 485,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,904.40 : 1,283,856.60 = 323,442.80 : x
  2. Step 2: Convert to fraction form
    855,904.40/1,283,856.60 = 323,442.80/x
  3. Step 3: Cross multiply
    855,904.40x = 1,283,856.60 × 323,442.80
  4. Step 4: Simplify right side
    855,904.40x = 415,254,173,502.48
  5. Step 5: Solve for x
    x = 415,254,173,502.48/855,904.40
  6. Step 6: Final answer
    x = 485,164.20

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Similar ratio
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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.