Home / 776,819.11-1,071,720.06-775,621.42

Finding the Fourth Proportional to 776,819.11, 1,071,720.06 and 775,621.42

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Solution

The fourth proportional to 776,819.11, 1,071,720.06 and 775,621.42 is: 1,070,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,819.11 : 1,071,720.06 = 775,621.42 : x
  2. Step 2: Convert to fraction form
    776,819.11/1,071,720.06 = 775,621.42/x
  3. Step 3: Cross multiply
    776,819.11x = 1,071,720.06 × 775,621.42
  4. Step 4: Simplify right side
    776,819.11x = 831,249,039,583.10
  5. Step 5: Solve for x
    x = 831,249,039,583.10/776,819.11
  6. Step 6: Final answer
    x = 1,070,067.70

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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.