Home / 1,186,237.90-1,780,122.30-654,140.80

Finding the Fourth Proportional to 1,186,237.90, 1,780,122.30 and 654,140.80

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Solution

The fourth proportional to 1,186,237.90, 1,780,122.30 and 654,140.80 is: 981,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,237.90 : 1,780,122.30 = 654,140.80 : x
  2. Step 2: Convert to fraction form
    1,186,237.90/1,780,122.30 = 654,140.80/x
  3. Step 3: Cross multiply
    1,186,237.90x = 1,780,122.30 × 654,140.80
  4. Step 4: Simplify right side
    1,186,237.90x = 1,164,450,625,419.84
  5. Step 5: Solve for x
    x = 1,164,450,625,419.84/1,186,237.90
  6. Step 6: Final answer
    x = 981,633.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.