Home / 2,091,242.80-3,136,895.20-811,924.32

Finding the Fourth Proportional to 2,091,242.80, 3,136,895.20 and 811,924.32

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Solution

The fourth proportional to 2,091,242.80, 3,136,895.20 and 811,924.32 is: 1,217,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091,242.80 : 3,136,895.20 = 811,924.32 : x
  2. Step 2: Convert to fraction form
    2,091,242.80/3,136,895.20 = 811,924.32/x
  3. Step 3: Cross multiply
    2,091,242.80x = 3,136,895.20 × 811,924.32
  4. Step 4: Simplify right side
    2,091,242.80x = 2,546,921,502,171.26
  5. Step 5: Solve for x
    x = 2,546,921,502,171.26/2,091,242.80
  6. Step 6: Final answer
    x = 1,217,898.52

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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.