Home / 1,282,189.96-1,769,311.92-709,087.48

Finding the Fourth Proportional to 1,282,189.96, 1,769,311.92 and 709,087.48

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Solution

The fourth proportional to 1,282,189.96, 1,769,311.92 and 709,087.48 is: 978,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,189.96 : 1,769,311.92 = 709,087.48 : x
  2. Step 2: Convert to fraction form
    1,282,189.96/1,769,311.92 = 709,087.48/x
  3. Step 3: Cross multiply
    1,282,189.96x = 1,769,311.92 × 709,087.48
  4. Step 4: Simplify right side
    1,282,189.96x = 1,254,596,930,686.76
  5. Step 5: Solve for x
    x = 1,254,596,930,686.76/1,282,189.96
  6. Step 6: Final answer
    x = 978,479.76

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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.