Home / 2,190,197.18-3,022,440.26-1,223,341.22

Finding the Fourth Proportional to 2,190,197.18, 3,022,440.26 and 1,223,341.22

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Solution

The fourth proportional to 2,190,197.18, 3,022,440.26 and 1,223,341.22 is: 1,688,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,197.18 : 3,022,440.26 = 1,223,341.22 : x
  2. Step 2: Convert to fraction form
    2,190,197.18/3,022,440.26 = 1,223,341.22/x
  3. Step 3: Cross multiply
    2,190,197.18x = 3,022,440.26 × 1,223,341.22
  4. Step 4: Simplify right side
    2,190,197.18x = 3,697,475,755,045.52
  5. Step 5: Solve for x
    x = 3,697,475,755,045.52/2,190,197.18
  6. Step 6: Final answer
    x = 1,688,193.09

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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.