Home / 2,187,006.46-3,018,070.80-1,220,136.96

Finding the Fourth Proportional to 2,187,006.46, 3,018,070.80 and 1,220,136.96

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Solution

The fourth proportional to 2,187,006.46, 3,018,070.80 and 1,220,136.96 is: 1,683,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,006.46 : 3,018,070.80 = 1,220,136.96 : x
  2. Step 2: Convert to fraction form
    2,187,006.46/3,018,070.80 = 1,220,136.96/x
  3. Step 3: Cross multiply
    2,187,006.46x = 3,018,070.80 × 1,220,136.96
  4. Step 4: Simplify right side
    2,187,006.46x = 3,682,459,730,976.77
  5. Step 5: Solve for x
    x = 3,682,459,730,976.77/2,187,006.46
  6. Step 6: Final answer
    x = 1,683,790.06

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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.