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Finding the Fourth Proportional to 871,388.82, 1,307,594.81 and 365,910.89

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Solution

The fourth proportional to 871,388.82, 1,307,594.81 and 365,910.89 is: 549,081.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,388.82 : 1,307,594.81 = 365,910.89 : x
  2. Step 2: Convert to fraction form
    871,388.82/1,307,594.81 = 365,910.89/x
  3. Step 3: Cross multiply
    871,388.82x = 1,307,594.81 × 365,910.89
  4. Step 4: Simplify right side
    871,388.82x = 478,463,175,063.28
  5. Step 5: Solve for x
    x = 478,463,175,063.28/871,388.82
  6. Step 6: Final answer
    x = 549,081.15

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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.