Home / 1,388,850.10-1,916,599.02-768,656.49

Finding the Fourth Proportional to 1,388,850.10, 1,916,599.02 and 768,656.49

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Solution

The fourth proportional to 1,388,850.10, 1,916,599.02 and 768,656.49 is: 1,060,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,850.10 : 1,916,599.02 = 768,656.49 : x
  2. Step 2: Convert to fraction form
    1,388,850.10/1,916,599.02 = 768,656.49/x
  3. Step 3: Cross multiply
    1,388,850.10x = 1,916,599.02 × 768,656.49
  4. Step 4: Simplify right side
    1,388,850.10x = 1,473,206,265,380.93
  5. Step 5: Solve for x
    x = 1,473,206,265,380.93/1,388,850.10
  6. Step 6: Final answer
    x = 1,060,738.14

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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.