Home / 1,298,851.70-1,948,322.10-400,286.30

Finding the Fourth Proportional to 1,298,851.70, 1,948,322.10 and 400,286.30

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Solution

The fourth proportional to 1,298,851.70, 1,948,322.10 and 400,286.30 is: 600,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,851.70 : 1,948,322.10 = 400,286.30 : x
  2. Step 2: Convert to fraction form
    1,298,851.70/1,948,322.10 = 400,286.30/x
  3. Step 3: Cross multiply
    1,298,851.70x = 1,948,322.10 × 400,286.30
  4. Step 4: Simplify right side
    1,298,851.70x = 779,886,644,617.23
  5. Step 5: Solve for x
    x = 779,886,644,617.23/1,298,851.70
  6. Step 6: Final answer
    x = 600,443.18

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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.