Home / 1,061,857.62-1,591,904.61-421,766.46

Finding the Fourth Proportional to 1,061,857.62, 1,591,904.61 and 421,766.46

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Solution

The fourth proportional to 1,061,857.62, 1,591,904.61 and 421,766.46 is: 632,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061,857.62 : 1,591,904.61 = 421,766.46 : x
  2. Step 2: Convert to fraction form
    1,061,857.62/1,591,904.61 = 421,766.46/x
  3. Step 3: Cross multiply
    1,061,857.62x = 1,591,904.61 × 421,766.46
  4. Step 4: Simplify right side
    1,061,857.62x = 671,411,972,017.38
  5. Step 5: Solve for x
    x = 671,411,972,017.38/1,061,857.62
  6. Step 6: Final answer
    x = 632,299.43

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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.