Home / 1,457,711.70-2,011,645.39-813,173.64

Finding the Fourth Proportional to 1,457,711.70, 2,011,645.39 and 813,173.64

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Solution

The fourth proportional to 1,457,711.70, 2,011,645.39 and 813,173.64 is: 1,122,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,711.70 : 2,011,645.39 = 813,173.64 : x
  2. Step 2: Convert to fraction form
    1,457,711.70/2,011,645.39 = 813,173.64/x
  3. Step 3: Cross multiply
    1,457,711.70x = 2,011,645.39 × 813,173.64
  4. Step 4: Simplify right side
    1,457,711.70x = 1,635,817,002,142.59
  5. Step 5: Solve for x
    x = 1,635,817,002,142.59/1,457,711.70
  6. Step 6: Final answer
    x = 1,122,181.43

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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.