Home / 2,688,136.40-4,032,118.20-891,102.80

Finding the Fourth Proportional to 2,688,136.40, 4,032,118.20 and 891,102.80

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Solution

The fourth proportional to 2,688,136.40, 4,032,118.20 and 891,102.80 is: 1,336,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,136.40 : 4,032,118.20 = 891,102.80 : x
  2. Step 2: Convert to fraction form
    2,688,136.40/4,032,118.20 = 891,102.80/x
  3. Step 3: Cross multiply
    2,688,136.40x = 4,032,118.20 × 891,102.80
  4. Step 4: Simplify right side
    2,688,136.40x = 3,593,031,817,950.96
  5. Step 5: Solve for x
    x = 3,593,031,817,950.96/2,688,136.40
  6. Step 6: Final answer
    x = 1,336,625.56

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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.