Home / 1,127,777.15-1,556,189.08-644,373.61

Finding the Fourth Proportional to 1,127,777.15, 1,556,189.08 and 644,373.61

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Solution

The fourth proportional to 1,127,777.15, 1,556,189.08 and 644,373.61 is: 889,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,777.15 : 1,556,189.08 = 644,373.61 : x
  2. Step 2: Convert to fraction form
    1,127,777.15/1,556,189.08 = 644,373.61/x
  3. Step 3: Cross multiply
    1,127,777.15x = 1,556,189.08 × 644,373.61
  4. Step 4: Simplify right side
    1,127,777.15x = 1,002,767,169,820.77
  5. Step 5: Solve for x
    x = 1,002,767,169,820.77/1,127,777.15
  6. Step 6: Final answer
    x = 889,153.65

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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.