Home / 1,271,822.40-1,905,692.40-672,001.20

Finding the Fourth Proportional to 1,271,822.40, 1,905,692.40 and 672,001.20

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Solution

The fourth proportional to 1,271,822.40, 1,905,692.40 and 672,001.20 is: 1,006,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,822.40 : 1,905,692.40 = 672,001.20 : x
  2. Step 2: Convert to fraction form
    1,271,822.40/1,905,692.40 = 672,001.20/x
  3. Step 3: Cross multiply
    1,271,822.40x = 1,905,692.40 × 672,001.20
  4. Step 4: Simplify right side
    1,271,822.40x = 1,280,627,579,630.88
  5. Step 5: Solve for x
    x = 1,280,627,579,630.88/1,271,822.40
  6. Step 6: Final answer
    x = 1,006,923.28

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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.