Home / 1,312,754.40-1,811,600.64-709,142.40

Finding the Fourth Proportional to 1,312,754.40, 1,811,600.64 and 709,142.40

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Solution

The fourth proportional to 1,312,754.40, 1,811,600.64 and 709,142.40 is: 978,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,754.40 : 1,811,600.64 = 709,142.40 : x
  2. Step 2: Convert to fraction form
    1,312,754.40/1,811,600.64 = 709,142.40/x
  3. Step 3: Cross multiply
    1,312,754.40x = 1,811,600.64 × 709,142.40
  4. Step 4: Simplify right side
    1,312,754.40x = 1,284,682,825,691.14
  5. Step 5: Solve for x
    x = 1,284,682,825,691.14/1,312,754.40
  6. Step 6: Final answer
    x = 978,616.28

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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.