Home / 2,178,421.43-3,006,260.19-1,211,552.10

Finding the Fourth Proportional to 2,178,421.43, 3,006,260.19 and 1,211,552.10

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Solution

The fourth proportional to 2,178,421.43, 3,006,260.19 and 1,211,552.10 is: 1,671,963.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,421.43 : 3,006,260.19 = 1,211,552.10 : x
  2. Step 2: Convert to fraction form
    2,178,421.43/3,006,260.19 = 1,211,552.10/x
  3. Step 3: Cross multiply
    2,178,421.43x = 3,006,260.19 × 1,211,552.10
  4. Step 4: Simplify right side
    2,178,421.43x = 3,642,240,846,340.90
  5. Step 5: Solve for x
    x = 3,642,240,846,340.90/2,178,421.43
  6. Step 6: Final answer
    x = 1,671,963.38

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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.