Home / 2,187,019.04-3,018,088.15-1,220,149.47

Finding the Fourth Proportional to 2,187,019.04, 3,018,088.15 and 1,220,149.47

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Solution

The fourth proportional to 2,187,019.04, 3,018,088.15 and 1,220,149.47 is: 1,683,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,019.04 : 3,018,088.15 = 1,220,149.47 : x
  2. Step 2: Convert to fraction form
    2,187,019.04/3,018,088.15 = 1,220,149.47/x
  3. Step 3: Cross multiply
    2,187,019.04x = 3,018,088.15 × 1,220,149.47
  4. Step 4: Simplify right side
    2,187,019.04x = 3,682,518,664,903.24
  5. Step 5: Solve for x
    x = 3,682,518,664,903.24/2,187,019.04
  6. Step 6: Final answer
    x = 1,683,807.32

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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.