Home / 2,187,000.26-3,018,062.25-1,220,130.75

Finding the Fourth Proportional to 2,187,000.26, 3,018,062.25 and 1,220,130.75

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Solution

The fourth proportional to 2,187,000.26, 3,018,062.25 and 1,220,130.75 is: 1,683,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,000.26 : 3,018,062.25 = 1,220,130.75 : x
  2. Step 2: Convert to fraction form
    2,187,000.26/3,018,062.25 = 1,220,130.75/x
  3. Step 3: Cross multiply
    2,187,000.26x = 3,018,062.25 × 1,220,130.75
  4. Step 4: Simplify right side
    2,187,000.26x = 3,682,430,564,987.26
  5. Step 5: Solve for x
    x = 3,682,430,564,987.26/2,187,000.26
  6. Step 6: Final answer
    x = 1,683,781.49

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Similar ratio
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1.5x scale

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.