Home / 1,298,805.45-1,948,421.42-400,247.34

Finding the Fourth Proportional to 1,298,805.45, 1,948,421.42 and 400,247.34

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Solution

The fourth proportional to 1,298,805.45, 1,948,421.42 and 400,247.34 is: 600,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,805.45 : 1,948,421.42 = 400,247.34 : x
  2. Step 2: Convert to fraction form
    1,298,805.45/1,948,421.42 = 400,247.34/x
  3. Step 3: Cross multiply
    1,298,805.45x = 1,948,421.42 × 400,247.34
  4. Step 4: Simplify right side
    1,298,805.45x = 779,850,488,552.79
  5. Step 5: Solve for x
    x = 779,850,488,552.79/1,298,805.45
  6. Step 6: Final answer
    x = 600,436.72

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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.