Home / 1,246,286.10-1,869,429.15-771,431.70

Finding the Fourth Proportional to 1,246,286.10, 1,869,429.15 and 771,431.70

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Solution

The fourth proportional to 1,246,286.10, 1,869,429.15 and 771,431.70 is: 1,157,147.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,286.10 : 1,869,429.15 = 771,431.70 : x
  2. Step 2: Convert to fraction form
    1,246,286.10/1,869,429.15 = 771,431.70/x
  3. Step 3: Cross multiply
    1,246,286.10x = 1,869,429.15 × 771,431.70
  4. Step 4: Simplify right side
    1,246,286.10x = 1,442,136,907,214.06
  5. Step 5: Solve for x
    x = 1,442,136,907,214.06/1,246,286.10
  6. Step 6: Final answer
    x = 1,157,147.55

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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.