Home / 1,427,878.11-2,142,377.90-628,598.87

Finding the Fourth Proportional to 1,427,878.11, 2,142,377.90 and 628,598.87

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Solution

The fourth proportional to 1,427,878.11, 2,142,377.90 and 628,598.87 is: 943,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,878.11 : 2,142,377.90 = 628,598.87 : x
  2. Step 2: Convert to fraction form
    1,427,878.11/2,142,377.90 = 628,598.87/x
  3. Step 3: Cross multiply
    1,427,878.11x = 2,142,377.90 × 628,598.87
  4. Step 4: Simplify right side
    1,427,878.11x = 1,346,696,313,198.09
  5. Step 5: Solve for x
    x = 1,346,696,313,198.09/1,427,878.11
  6. Step 6: Final answer
    x = 943,145.15

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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.