Home / 1,457,912.39-2,011,919.96-813,332.58

Finding the Fourth Proportional to 1,457,912.39, 2,011,919.96 and 813,332.58

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Solution

The fourth proportional to 1,457,912.39, 2,011,919.96 and 813,332.58 is: 1,122,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,912.39 : 2,011,919.96 = 813,332.58 : x
  2. Step 2: Convert to fraction form
    1,457,912.39/2,011,919.96 = 813,332.58/x
  3. Step 3: Cross multiply
    1,457,912.39x = 2,011,919.96 × 813,332.58
  4. Step 4: Simplify right side
    1,457,912.39x = 1,636,360,051,820.30
  5. Step 5: Solve for x
    x = 1,636,360,051,820.30/1,457,912.39
  6. Step 6: Final answer
    x = 1,122,399.44

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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.