Home / 1,424,123.65-1,965,241.70-812,474.41

Finding the Fourth Proportional to 1,424,123.65, 1,965,241.70 and 812,474.41

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Solution

The fourth proportional to 1,424,123.65, 1,965,241.70 and 812,474.41 is: 1,121,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,123.65 : 1,965,241.70 = 812,474.41 : x
  2. Step 2: Convert to fraction form
    1,424,123.65/1,965,241.70 = 812,474.41/x
  3. Step 3: Cross multiply
    1,424,123.65x = 1,965,241.70 × 812,474.41
  4. Step 4: Simplify right side
    1,424,123.65x = 1,596,708,586,652.53
  5. Step 5: Solve for x
    x = 1,596,708,586,652.53/1,424,123.65
  6. Step 6: Final answer
    x = 1,121,186.76

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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.