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Finding the Fourth Proportional to 1,531,714.80, 2,113,748.52 and 843,372.30

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Solution

The fourth proportional to 1,531,714.80, 2,113,748.52 and 843,372.30 is: 1,163,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,714.80 : 2,113,748.52 = 843,372.30 : x
  2. Step 2: Convert to fraction form
    1,531,714.80/2,113,748.52 = 843,372.30/x
  3. Step 3: Cross multiply
    1,531,714.80x = 2,113,748.52 × 843,372.30
  4. Step 4: Simplify right side
    1,531,714.80x = 1,782,676,950,934.00
  5. Step 5: Solve for x
    x = 1,782,676,950,934.00/1,531,714.80
  6. Step 6: Final answer
    x = 1,163,843.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.