Home / 3,111,174-4,293,423-1,680,390

Finding the Fourth Proportional to 3,111,174, 4,293,423 and 1,680,390

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Solution

The fourth proportional to 3,111,174, 4,293,423 and 1,680,390 is: 2,318,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,174 : 4,293,423 = 1,680,390 : x
  2. Step 2: Convert to fraction form
    3,111,174/4,293,423 = 1,680,390/x
  3. Step 3: Cross multiply
    3,111,174x = 4,293,423 × 1,680,390
  4. Step 4: Simplify right side
    3,111,174x = 7,214,625,074,970
  5. Step 5: Solve for x
    x = 7,214,625,074,970/3,111,174
  6. Step 6: Final answer
    x = 2,318,939.76

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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.