Home / 1,343,116.60-2,016,230.10-811,238.20

Finding the Fourth Proportional to 1,343,116.60, 2,016,230.10 and 811,238.20

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Solution

The fourth proportional to 1,343,116.60, 2,016,230.10 and 811,238.20 is: 1,217,796.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,116.60 : 2,016,230.10 = 811,238.20 : x
  2. Step 2: Convert to fraction form
    1,343,116.60/2,016,230.10 = 811,238.20/x
  3. Step 3: Cross multiply
    1,343,116.60x = 2,016,230.10 × 811,238.20
  4. Step 4: Simplify right side
    1,343,116.60x = 1,635,642,877,109.82
  5. Step 5: Solve for x
    x = 1,635,642,877,109.82/1,343,116.60
  6. Step 6: Final answer
    x = 1,217,796.64

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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.