Home / 1,298,912.72-1,948,563-400,279.76

Finding the Fourth Proportional to 1,298,912.72, 1,948,563 and 400,279.76

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Solution

The fourth proportional to 1,298,912.72, 1,948,563 and 400,279.76 is: 600,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,912.72 : 1,948,563 = 400,279.76 : x
  2. Step 2: Convert to fraction form
    1,298,912.72/1,948,563 = 400,279.76/x
  3. Step 3: Cross multiply
    1,298,912.72x = 1,948,563 × 400,279.76
  4. Step 4: Simplify right side
    1,298,912.72x = 779,970,329,984.88
  5. Step 5: Solve for x
    x = 779,970,329,984.88/1,298,912.72
  6. Step 6: Final answer
    x = 600,479.40

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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.