Home / 3,131,712.78-4,697,569.20-767,808.78

Finding the Fourth Proportional to 3,131,712.78, 4,697,569.20 and 767,808.78

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Solution

The fourth proportional to 3,131,712.78, 4,697,569.20 and 767,808.78 is: 1,151,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,712.78 : 4,697,569.20 = 767,808.78 : x
  2. Step 2: Convert to fraction form
    3,131,712.78/4,697,569.20 = 767,808.78/x
  3. Step 3: Cross multiply
    3,131,712.78x = 4,697,569.20 × 767,808.78
  4. Step 4: Simplify right side
    3,131,712.78x = 3,606,834,876,417.58
  5. Step 5: Solve for x
    x = 3,606,834,876,417.58/3,131,712.78
  6. Step 6: Final answer
    x = 1,151,713.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.