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Finding the Fourth Proportional to 708,948.04, 978,507.12 and 450,775.12

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Solution

The fourth proportional to 708,948.04, 978,507.12 and 450,775.12 is: 622,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,948.04 : 978,507.12 = 450,775.12 : x
  2. Step 2: Convert to fraction form
    708,948.04/978,507.12 = 450,775.12/x
  3. Step 3: Cross multiply
    708,948.04x = 978,507.12 × 450,775.12
  4. Step 4: Simplify right side
    708,948.04x = 441,086,664,438.85
  5. Step 5: Solve for x
    x = 441,086,664,438.85/708,948.04
  6. Step 6: Final answer
    x = 622,170.65

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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.