Home / 1,138,751.72-1,571,409.06-629,423.72

Finding the Fourth Proportional to 1,138,751.72, 1,571,409.06 and 629,423.72

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Solution

The fourth proportional to 1,138,751.72, 1,571,409.06 and 629,423.72 is: 868,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,751.72 : 1,571,409.06 = 629,423.72 : x
  2. Step 2: Convert to fraction form
    1,138,751.72/1,571,409.06 = 629,423.72/x
  3. Step 3: Cross multiply
    1,138,751.72x = 1,571,409.06 × 629,423.72
  4. Step 4: Simplify right side
    1,138,751.72x = 989,082,136,186.90
  5. Step 5: Solve for x
    x = 989,082,136,186.90/1,138,751.72
  6. Step 6: Final answer
    x = 868,566.97

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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.