Home / 1,419,223.80-2,128,835.70-971,326.20

Finding the Fourth Proportional to 1,419,223.80, 2,128,835.70 and 971,326.20

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Solution

The fourth proportional to 1,419,223.80, 2,128,835.70 and 971,326.20 is: 1,456,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,223.80 : 2,128,835.70 = 971,326.20 : x
  2. Step 2: Convert to fraction form
    1,419,223.80/2,128,835.70 = 971,326.20/x
  3. Step 3: Cross multiply
    1,419,223.80x = 2,128,835.70 × 971,326.20
  4. Step 4: Simplify right side
    1,419,223.80x = 2,067,793,890,905.34
  5. Step 5: Solve for x
    x = 2,067,793,890,905.34/1,419,223.80
  6. Step 6: Final answer
    x = 1,456,989.30

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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.