Home / 2,912,690.20-4,369,691.40-891,027.40

Finding the Fourth Proportional to 2,912,690.20, 4,369,691.40 and 891,027.40

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Solution

The fourth proportional to 2,912,690.20, 4,369,691.40 and 891,027.40 is: 1,336,741.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,690.20 : 4,369,691.40 = 891,027.40 : x
  2. Step 2: Convert to fraction form
    2,912,690.20/4,369,691.40 = 891,027.40/x
  3. Step 3: Cross multiply
    2,912,690.20x = 4,369,691.40 × 891,027.40
  4. Step 4: Simplify right side
    2,912,690.20x = 3,893,514,766,944.36
  5. Step 5: Solve for x
    x = 3,893,514,766,944.36/2,912,690.20
  6. Step 6: Final answer
    x = 1,336,741.81

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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.