Home / 1,282,142.39-1,769,263.16-709,192.13

Finding the Fourth Proportional to 1,282,142.39, 1,769,263.16 and 709,192.13

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Solution

The fourth proportional to 1,282,142.39, 1,769,263.16 and 709,192.13 is: 978,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,142.39 : 1,769,263.16 = 709,192.13 : x
  2. Step 2: Convert to fraction form
    1,282,142.39/1,769,263.16 = 709,192.13/x
  3. Step 3: Cross multiply
    1,282,142.39x = 1,769,263.16 × 709,192.13
  4. Step 4: Simplify right side
    1,282,142.39x = 1,254,747,496,578.65
  5. Step 5: Solve for x
    x = 1,254,747,496,578.65/1,282,142.39
  6. Step 6: Final answer
    x = 978,633.51

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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.