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Finding the Fourth Proportional to 681,482.61, 940,487.09 and 375,558.17

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Solution

The fourth proportional to 681,482.61, 940,487.09 and 375,558.17 is: 518,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,482.61 : 940,487.09 = 375,558.17 : x
  2. Step 2: Convert to fraction form
    681,482.61/940,487.09 = 375,558.17/x
  3. Step 3: Cross multiply
    681,482.61x = 940,487.09 × 375,558.17
  4. Step 4: Simplify right side
    681,482.61x = 353,207,603,848.80
  5. Step 5: Solve for x
    x = 353,207,603,848.80/681,482.61
  6. Step 6: Final answer
    x = 518,292.91

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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.