Home / 1,282,353.66-1,769,700.15-709,383.96

Finding the Fourth Proportional to 1,282,353.66, 1,769,700.15 and 709,383.96

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Solution

The fourth proportional to 1,282,353.66, 1,769,700.15 and 709,383.96 is: 978,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,353.66 : 1,769,700.15 = 709,383.96 : x
  2. Step 2: Convert to fraction form
    1,282,353.66/1,769,700.15 = 709,383.96/x
  3. Step 3: Cross multiply
    1,282,353.66x = 1,769,700.15 × 709,383.96
  4. Step 4: Simplify right side
    1,282,353.66x = 1,255,396,900,419.59
  5. Step 5: Solve for x
    x = 1,255,396,900,419.59/1,282,353.66
  6. Step 6: Final answer
    x = 978,978.69

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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.