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Finding the Fourth Proportional to 801,863.86, 1,106,572.03 and 479,573.91

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Solution

The fourth proportional to 801,863.86, 1,106,572.03 and 479,573.91 is: 661,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,863.86 : 1,106,572.03 = 479,573.91 : x
  2. Step 2: Convert to fraction form
    801,863.86/1,106,572.03 = 479,573.91/x
  3. Step 3: Cross multiply
    801,863.86x = 1,106,572.03 × 479,573.91
  4. Step 4: Simplify right side
    801,863.86x = 530,683,075,123.74
  5. Step 5: Solve for x
    x = 530,683,075,123.74/801,863.86
  6. Step 6: Final answer
    x = 661,811.94

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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.