Home / 1,424,120.89-1,965,237.90-812,471.66

Finding the Fourth Proportional to 1,424,120.89, 1,965,237.90 and 812,471.66

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Solution

The fourth proportional to 1,424,120.89, 1,965,237.90 and 812,471.66 is: 1,121,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,120.89 : 1,965,237.90 = 812,471.66 : x
  2. Step 2: Convert to fraction form
    1,424,120.89/1,965,237.90 = 812,471.66/x
  3. Step 3: Cross multiply
    1,424,120.89x = 1,965,237.90 × 812,471.66
  4. Step 4: Simplify right side
    1,424,120.89x = 1,596,700,098,907.91
  5. Step 5: Solve for x
    x = 1,596,700,098,907.91/1,424,120.89
  6. Step 6: Final answer
    x = 1,121,182.98

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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.