Home / 1,091,808.20-1,637,942.70-343,929.80

Finding the Fourth Proportional to 1,091,808.20, 1,637,942.70 and 343,929.80

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Solution

The fourth proportional to 1,091,808.20, 1,637,942.70 and 343,929.80 is: 515,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,808.20 : 1,637,942.70 = 343,929.80 : x
  2. Step 2: Convert to fraction form
    1,091,808.20/1,637,942.70 = 343,929.80/x
  3. Step 3: Cross multiply
    1,091,808.20x = 1,637,942.70 × 343,929.80
  4. Step 4: Simplify right side
    1,091,808.20x = 563,337,305,222.46
  5. Step 5: Solve for x
    x = 563,337,305,222.46/1,091,808.20
  6. Step 6: Final answer
    x = 515,967.28

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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.