Home / 1,385,946.80-2,080,475.40-1,071,796.40

Finding the Fourth Proportional to 1,385,946.80, 2,080,475.40 and 1,071,796.40

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Solution

The fourth proportional to 1,385,946.80, 2,080,475.40 and 1,071,796.40 is: 1,608,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,946.80 : 2,080,475.40 = 1,071,796.40 : x
  2. Step 2: Convert to fraction form
    1,385,946.80/2,080,475.40 = 1,071,796.40/x
  3. Step 3: Cross multiply
    1,385,946.80x = 2,080,475.40 × 1,071,796.40
  4. Step 4: Simplify right side
    1,385,946.80x = 2,229,846,044,008.56
  5. Step 5: Solve for x
    x = 2,229,846,044,008.56/1,385,946.80
  6. Step 6: Final answer
    x = 1,608,897.29

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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.