Home / 2,166,287.10-2,989,569.60-1,199,417.40

Finding the Fourth Proportional to 2,166,287.10, 2,989,569.60 and 1,199,417.40

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Solution

The fourth proportional to 2,166,287.10, 2,989,569.60 and 1,199,417.40 is: 1,655,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,287.10 : 2,989,569.60 = 1,199,417.40 : x
  2. Step 2: Convert to fraction form
    2,166,287.10/2,989,569.60 = 1,199,417.40/x
  3. Step 3: Cross multiply
    2,166,287.10x = 2,989,569.60 × 1,199,417.40
  4. Step 4: Simplify right side
    2,166,287.10x = 3,585,741,796,751.04
  5. Step 5: Solve for x
    x = 3,585,741,796,751.04/2,166,287.10
  6. Step 6: Final answer
    x = 1,655,247.73

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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.