Home / 1,320,890.12-1,822,857.92-740,156.57

Finding the Fourth Proportional to 1,320,890.12, 1,822,857.92 and 740,156.57

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Solution

The fourth proportional to 1,320,890.12, 1,822,857.92 and 740,156.57 is: 1,021,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,890.12 : 1,822,857.92 = 740,156.57 : x
  2. Step 2: Convert to fraction form
    1,320,890.12/1,822,857.92 = 740,156.57/x
  3. Step 3: Cross multiply
    1,320,890.12x = 1,822,857.92 × 740,156.57
  4. Step 4: Simplify right side
    1,320,890.12x = 1,349,200,252,849.46
  5. Step 5: Solve for x
    x = 1,349,200,252,849.46/1,320,890.12
  6. Step 6: Final answer
    x = 1,021,432.62

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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.