Home / 1,127,780.16-1,556,193.22-644,376.60

Finding the Fourth Proportional to 1,127,780.16, 1,556,193.22 and 644,376.60

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Solution

The fourth proportional to 1,127,780.16, 1,556,193.22 and 644,376.60 is: 889,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,780.16 : 1,556,193.22 = 644,376.60 : x
  2. Step 2: Convert to fraction form
    1,127,780.16/1,556,193.22 = 644,376.60/x
  3. Step 3: Cross multiply
    1,127,780.16x = 1,556,193.22 × 644,376.60
  4. Step 4: Simplify right side
    1,127,780.16x = 1,002,774,496,046.65
  5. Step 5: Solve for x
    x = 1,002,774,496,046.65/1,127,780.16
  6. Step 6: Final answer
    x = 889,157.77

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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.