Home / 1,457,912.64-2,011,920.31-813,332.83

Finding the Fourth Proportional to 1,457,912.64, 2,011,920.31 and 813,332.83

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Solution

The fourth proportional to 1,457,912.64, 2,011,920.31 and 813,332.83 is: 1,122,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,912.64 : 2,011,920.31 = 813,332.83 : x
  2. Step 2: Convert to fraction form
    1,457,912.64/2,011,920.31 = 813,332.83/x
  3. Step 3: Cross multiply
    1,457,912.64x = 2,011,920.31 × 813,332.83
  4. Step 4: Simplify right side
    1,457,912.64x = 1,636,360,834,651.00
  5. Step 5: Solve for x
    x = 1,636,360,834,651.00/1,457,912.64
  6. Step 6: Final answer
    x = 1,122,399.79

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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.