Home / 1,389,660.30-2,084,490.45-1,366,040.70

Finding the Fourth Proportional to 1,389,660.30, 2,084,490.45 and 1,366,040.70

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Solution

The fourth proportional to 1,389,660.30, 2,084,490.45 and 1,366,040.70 is: 2,049,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,660.30 : 2,084,490.45 = 1,366,040.70 : x
  2. Step 2: Convert to fraction form
    1,389,660.30/2,084,490.45 = 1,366,040.70/x
  3. Step 3: Cross multiply
    1,389,660.30x = 2,084,490.45 × 1,366,040.70
  4. Step 4: Simplify right side
    1,389,660.30x = 2,847,498,793,461.32
  5. Step 5: Solve for x
    x = 2,847,498,793,461.32/1,389,660.30
  6. Step 6: Final answer
    x = 2,049,061.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.