Home / 1,457,392.62-2,011,205.39-812,854.56

Finding the Fourth Proportional to 1,457,392.62, 2,011,205.39 and 812,854.56

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Solution

The fourth proportional to 1,457,392.62, 2,011,205.39 and 812,854.56 is: 1,121,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,392.62 : 2,011,205.39 = 812,854.56 : x
  2. Step 2: Convert to fraction form
    1,457,392.62/2,011,205.39 = 812,854.56/x
  3. Step 3: Cross multiply
    1,457,392.62x = 2,011,205.39 × 812,854.56
  4. Step 4: Simplify right side
    1,457,392.62x = 1,634,817,468,293.81
  5. Step 5: Solve for x
    x = 1,634,817,468,293.81/1,457,392.62
  6. Step 6: Final answer
    x = 1,121,741.28

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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.