Home / 1,186,745.81-1,637,707.74-642,883.85

Finding the Fourth Proportional to 1,186,745.81, 1,637,707.74 and 642,883.85

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Solution

The fourth proportional to 1,186,745.81, 1,637,707.74 and 642,883.85 is: 887,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,745.81 : 1,637,707.74 = 642,883.85 : x
  2. Step 2: Convert to fraction form
    1,186,745.81/1,637,707.74 = 642,883.85/x
  3. Step 3: Cross multiply
    1,186,745.81x = 1,637,707.74 × 642,883.85
  4. Step 4: Simplify right side
    1,186,745.81x = 1,052,855,861,160.27
  5. Step 5: Solve for x
    x = 1,052,855,861,160.27/1,186,745.81
  6. Step 6: Final answer
    x = 887,178.91

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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.