Home / 1,431,695.55-1,975,731.57-811,617.74

Finding the Fourth Proportional to 1,431,695.55, 1,975,731.57 and 811,617.74

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Solution

The fourth proportional to 1,431,695.55, 1,975,731.57 and 811,617.74 is: 1,120,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,695.55 : 1,975,731.57 = 811,617.74 : x
  2. Step 2: Convert to fraction form
    1,431,695.55/1,975,731.57 = 811,617.74/x
  3. Step 3: Cross multiply
    1,431,695.55x = 1,975,731.57 × 811,617.74
  4. Step 4: Simplify right side
    1,431,695.55x = 1,603,538,790,534.69
  5. Step 5: Solve for x
    x = 1,603,538,790,534.69/1,431,695.55
  6. Step 6: Final answer
    x = 1,120,027.78

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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.