Home / 899,903.46-1,242,179.52-518,082.42

Finding the Fourth Proportional to 899,903.46, 1,242,179.52 and 518,082.42

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Solution

The fourth proportional to 899,903.46, 1,242,179.52 and 518,082.42 is: 715,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,903.46 : 1,242,179.52 = 518,082.42 : x
  2. Step 2: Convert to fraction form
    899,903.46/1,242,179.52 = 518,082.42/x
  3. Step 3: Cross multiply
    899,903.46x = 1,242,179.52 × 518,082.42
  4. Step 4: Simplify right side
    899,903.46x = 643,551,371,796.04
  5. Step 5: Solve for x
    x = 643,551,371,796.04/899,903.46
  6. Step 6: Final answer
    x = 715,133.79

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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.