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Finding the Fourth Proportional to 620,997.84, 930,717.40 and 265,594

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Solution

The fourth proportional to 620,997.84, 930,717.40 and 265,594 is: 398,057.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,997.84 : 930,717.40 = 265,594 : x
  2. Step 2: Convert to fraction form
    620,997.84/930,717.40 = 265,594/x
  3. Step 3: Cross multiply
    620,997.84x = 930,717.40 × 265,594
  4. Step 4: Simplify right side
    620,997.84x = 247,192,957,135.60
  5. Step 5: Solve for x
    x = 247,192,957,135.60/620,997.84
  6. Step 6: Final answer
    x = 398,057.68

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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.