Home / 2,688,246.40-4,032,283.20-891,212.80

Finding the Fourth Proportional to 2,688,246.40, 4,032,283.20 and 891,212.80

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Solution

The fourth proportional to 2,688,246.40, 4,032,283.20 and 891,212.80 is: 1,336,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,246.40 : 4,032,283.20 = 891,212.80 : x
  2. Step 2: Convert to fraction form
    2,688,246.40/4,032,283.20 = 891,212.80/x
  3. Step 3: Cross multiply
    2,688,246.40x = 4,032,283.20 × 891,212.80
  4. Step 4: Simplify right side
    2,688,246.40x = 3,593,622,401,064.96
  5. Step 5: Solve for x
    x = 3,593,622,401,064.96/2,688,246.40
  6. Step 6: Final answer
    x = 1,336,790.56

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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.