Home / 2,239,130.82-3,090,000.76-1,220,535.56

Finding the Fourth Proportional to 2,239,130.82, 3,090,000.76 and 1,220,535.56

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Solution

The fourth proportional to 2,239,130.82, 3,090,000.76 and 1,220,535.56 is: 1,684,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,130.82 : 3,090,000.76 = 1,220,535.56 : x
  2. Step 2: Convert to fraction form
    2,239,130.82/3,090,000.76 = 1,220,535.56/x
  3. Step 3: Cross multiply
    2,239,130.82x = 3,090,000.76 × 1,220,535.56
  4. Step 4: Simplify right side
    2,239,130.82x = 3,771,455,808,007.03
  5. Step 5: Solve for x
    x = 3,771,455,808,007.03/2,239,130.82
  6. Step 6: Final answer
    x = 1,684,339.20

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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.