Home / 1,243,648.72-1,865,264.38-345,181.74

Finding the Fourth Proportional to 1,243,648.72, 1,865,264.38 and 345,181.74

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Solution

The fourth proportional to 1,243,648.72, 1,865,264.38 and 345,181.74 is: 517,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,648.72 : 1,865,264.38 = 345,181.74 : x
  2. Step 2: Convert to fraction form
    1,243,648.72/1,865,264.38 = 345,181.74/x
  3. Step 3: Cross multiply
    1,243,648.72x = 1,865,264.38 × 345,181.74
  4. Step 4: Simplify right side
    1,243,648.72x = 643,855,204,248.42
  5. Step 5: Solve for x
    x = 643,855,204,248.42/1,243,648.72
  6. Step 6: Final answer
    x = 517,714.68

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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.