Home / 1,427,320.40-2,136,833.40-1,385,848.40

Finding the Fourth Proportional to 1,427,320.40, 2,136,833.40 and 1,385,848.40

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Solution

The fourth proportional to 1,427,320.40, 2,136,833.40 and 1,385,848.40 is: 2,074,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,320.40 : 2,136,833.40 = 1,385,848.40 : x
  2. Step 2: Convert to fraction form
    1,427,320.40/2,136,833.40 = 1,385,848.40/x
  3. Step 3: Cross multiply
    1,427,320.40x = 2,136,833.40 × 1,385,848.40
  4. Step 4: Simplify right side
    1,427,320.40x = 2,961,327,148,456.56
  5. Step 5: Solve for x
    x = 2,961,327,148,456.56/1,427,320.40
  6. Step 6: Final answer
    x = 2,074,745.90

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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.