Home / 1,221,966.92-1,687,056.18-949,520.18

Finding the Fourth Proportional to 1,221,966.92, 1,687,056.18 and 949,520.18

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Solution

The fourth proportional to 1,221,966.92, 1,687,056.18 and 949,520.18 is: 1,310,914.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,966.92 : 1,687,056.18 = 949,520.18 : x
  2. Step 2: Convert to fraction form
    1,221,966.92/1,687,056.18 = 949,520.18/x
  3. Step 3: Cross multiply
    1,221,966.92x = 1,687,056.18 × 949,520.18
  4. Step 4: Simplify right side
    1,221,966.92x = 1,601,893,887,703.71
  5. Step 5: Solve for x
    x = 1,601,893,887,703.71/1,221,966.92
  6. Step 6: Final answer
    x = 1,310,914.28

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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.