Home / 1,091,718.70-1,637,808.45-343,840.30

Finding the Fourth Proportional to 1,091,718.70, 1,637,808.45 and 343,840.30

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Solution

The fourth proportional to 1,091,718.70, 1,637,808.45 and 343,840.30 is: 515,833.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,718.70 : 1,637,808.45 = 343,840.30 : x
  2. Step 2: Convert to fraction form
    1,091,718.70/1,637,808.45 = 343,840.30/x
  3. Step 3: Cross multiply
    1,091,718.70x = 1,637,808.45 × 343,840.30
  4. Step 4: Simplify right side
    1,091,718.70x = 563,144,548,790.54
  5. Step 5: Solve for x
    x = 563,144,548,790.54/1,091,718.70
  6. Step 6: Final answer
    x = 515,833.02

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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.