Home / 2,166,281.57-2,989,562.01-1,199,411.90

Finding the Fourth Proportional to 2,166,281.57, 2,989,562.01 and 1,199,411.90

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Solution

The fourth proportional to 2,166,281.57, 2,989,562.01 and 1,199,411.90 is: 1,655,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,281.57 : 2,989,562.01 = 1,199,411.90 : x
  2. Step 2: Convert to fraction form
    2,166,281.57/2,989,562.01 = 1,199,411.90/x
  3. Step 3: Cross multiply
    2,166,281.57x = 2,989,562.01 × 1,199,411.90
  4. Step 4: Simplify right side
    2,166,281.57x = 3,585,716,250,581.92
  5. Step 5: Solve for x
    x = 3,585,716,250,581.92/2,166,281.57
  6. Step 6: Final answer
    x = 1,655,240.16

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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.