Home / 1,390,732.74-2,085,761.95-379,859.42

Finding the Fourth Proportional to 1,390,732.74, 2,085,761.95 and 379,859.42

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Solution

The fourth proportional to 1,390,732.74, 2,085,761.95 and 379,859.42 is: 569,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,732.74 : 2,085,761.95 = 379,859.42 : x
  2. Step 2: Convert to fraction form
    1,390,732.74/2,085,761.95 = 379,859.42/x
  3. Step 3: Cross multiply
    1,390,732.74x = 2,085,761.95 × 379,859.42
  4. Step 4: Simplify right side
    1,390,732.74x = 792,296,328,849.83
  5. Step 5: Solve for x
    x = 792,296,328,849.83/1,390,732.74
  6. Step 6: Final answer
    x = 569,697.04

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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.