Home / 2,190,177.18-3,022,412.67-1,223,321.22

Finding the Fourth Proportional to 2,190,177.18, 3,022,412.67 and 1,223,321.22

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Solution

The fourth proportional to 2,190,177.18, 3,022,412.67 and 1,223,321.22 is: 1,688,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,177.18 : 3,022,412.67 = 1,223,321.22 : x
  2. Step 2: Convert to fraction form
    2,190,177.18/3,022,412.67 = 1,223,321.22/x
  3. Step 3: Cross multiply
    2,190,177.18x = 3,022,412.67 × 1,223,321.22
  4. Step 4: Simplify right side
    2,190,177.18x = 3,697,381,554,807.86
  5. Step 5: Solve for x
    x = 3,697,381,554,807.86/2,190,177.18
  6. Step 6: Final answer
    x = 1,688,165.50

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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.