Home / 2,116,670.10-2,921,414.12-1,380,346.23

Finding the Fourth Proportional to 2,116,670.10, 2,921,414.12 and 1,380,346.23

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Solution

The fourth proportional to 2,116,670.10, 2,921,414.12 and 1,380,346.23 is: 1,905,144.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,670.10 : 2,921,414.12 = 1,380,346.23 : x
  2. Step 2: Convert to fraction form
    2,116,670.10/2,921,414.12 = 1,380,346.23/x
  3. Step 3: Cross multiply
    2,116,670.10x = 2,921,414.12 × 1,380,346.23
  4. Step 4: Simplify right side
    2,116,670.10x = 4,032,562,966,810.77
  5. Step 5: Solve for x
    x = 4,032,562,966,810.77/2,116,670.10
  6. Step 6: Final answer
    x = 1,905,144.77

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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.