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Finding the Fourth Proportional to 613,425.16, 846,565.32 and 371,728.90

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Solution

The fourth proportional to 613,425.16, 846,565.32 and 371,728.90 is: 513,009.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,425.16 : 846,565.32 = 371,728.90 : x
  2. Step 2: Convert to fraction form
    613,425.16/846,565.32 = 371,728.90/x
  3. Step 3: Cross multiply
    613,425.16x = 846,565.32 × 371,728.90
  4. Step 4: Simplify right side
    613,425.16x = 314,692,795,181.75
  5. Step 5: Solve for x
    x = 314,692,795,181.75/613,425.16
  6. Step 6: Final answer
    x = 513,009.27

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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.