Home / 1,138,034.50-1,570,469.26-621,777.30

Finding the Fourth Proportional to 1,138,034.50, 1,570,469.26 and 621,777.30

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Solution

The fourth proportional to 1,138,034.50, 1,570,469.26 and 621,777.30 is: 858,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,034.50 : 1,570,469.26 = 621,777.30 : x
  2. Step 2: Convert to fraction form
    1,138,034.50/1,570,469.26 = 621,777.30/x
  3. Step 3: Cross multiply
    1,138,034.50x = 1,570,469.26 × 621,777.30
  4. Step 4: Simplify right side
    1,138,034.50x = 976,482,136,215.80
  5. Step 5: Solve for x
    x = 976,482,136,215.80/1,138,034.50
  6. Step 6: Final answer
    x = 858,042.65

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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.