Home / 1,457,570.39-2,011,441.92-812,990.09

Finding the Fourth Proportional to 1,457,570.39, 2,011,441.92 and 812,990.09

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Solution

The fourth proportional to 1,457,570.39, 2,011,441.92 and 812,990.09 is: 1,121,923.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,570.39 : 2,011,441.92 = 812,990.09 : x
  2. Step 2: Convert to fraction form
    1,457,570.39/2,011,441.92 = 812,990.09/x
  3. Step 3: Cross multiply
    1,457,570.39x = 2,011,441.92 × 812,990.09
  4. Step 4: Simplify right side
    1,457,570.39x = 1,635,282,347,570.57
  5. Step 5: Solve for x
    x = 1,635,282,347,570.57/1,457,570.39
  6. Step 6: Final answer
    x = 1,121,923.41

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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.