Home / 1,457,398.62-2,011,213.67-812,860.56

Finding the Fourth Proportional to 1,457,398.62, 2,011,213.67 and 812,860.56

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Solution

The fourth proportional to 1,457,398.62, 2,011,213.67 and 812,860.56 is: 1,121,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,398.62 : 2,011,213.67 = 812,860.56 : x
  2. Step 2: Convert to fraction form
    1,457,398.62/2,011,213.67 = 812,860.56/x
  3. Step 3: Cross multiply
    1,457,398.62x = 2,011,213.67 × 812,860.56
  4. Step 4: Simplify right side
    1,457,398.62x = 1,634,836,266,011.55
  5. Step 5: Solve for x
    x = 1,634,836,266,011.55/1,457,398.62
  6. Step 6: Final answer
    x = 1,121,749.56

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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.