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Finding the Fourth Proportional to 637,735.64, 880,041.97 and 396,013.02

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Solution

The fourth proportional to 637,735.64, 880,041.97 and 396,013.02 is: 546,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,735.64 : 880,041.97 = 396,013.02 : x
  2. Step 2: Convert to fraction form
    637,735.64/880,041.97 = 396,013.02/x
  3. Step 3: Cross multiply
    637,735.64x = 880,041.97 × 396,013.02
  4. Step 4: Simplify right side
    637,735.64x = 348,508,076,286.38
  5. Step 5: Solve for x
    x = 348,508,076,286.38/637,735.64
  6. Step 6: Final answer
    x = 546,477.34

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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.