Home / 1,312,321.10-1,811,003.13-708,709.10

Finding the Fourth Proportional to 1,312,321.10, 1,811,003.13 and 708,709.10

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Solution

The fourth proportional to 1,312,321.10, 1,811,003.13 and 708,709.10 is: 978,018.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,321.10 : 1,811,003.13 = 708,709.10 : x
  2. Step 2: Convert to fraction form
    1,312,321.10/1,811,003.13 = 708,709.10/x
  3. Step 3: Cross multiply
    1,312,321.10x = 1,811,003.13 × 708,709.10
  4. Step 4: Simplify right side
    1,312,321.10x = 1,283,474,398,359.48
  5. Step 5: Solve for x
    x = 1,283,474,398,359.48/1,312,321.10
  6. Step 6: Final answer
    x = 978,018.56

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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.