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Finding the Fourth Proportional to 637,745.54, 880,055.60 and 396,022.91

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Solution

The fourth proportional to 637,745.54, 880,055.60 and 396,022.91 is: 546,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,745.54 : 880,055.60 = 396,022.91 : x
  2. Step 2: Convert to fraction form
    637,745.54/880,055.60 = 396,022.91/x
  3. Step 3: Cross multiply
    637,745.54x = 880,055.60 × 396,022.91
  4. Step 4: Simplify right side
    637,745.54x = 348,522,173,293.40
  5. Step 5: Solve for x
    x = 348,522,173,293.40/637,745.54
  6. Step 6: Final answer
    x = 546,490.97

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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.