Home / 2,688,029.20-4,032,043.80-915,101.20

Finding the Fourth Proportional to 2,688,029.20, 4,032,043.80 and 915,101.20

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Solution

The fourth proportional to 2,688,029.20, 4,032,043.80 and 915,101.20 is: 1,372,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,029.20 : 4,032,043.80 = 915,101.20 : x
  2. Step 2: Convert to fraction form
    2,688,029.20/4,032,043.80 = 915,101.20/x
  3. Step 3: Cross multiply
    2,688,029.20x = 4,032,043.80 × 915,101.20
  4. Step 4: Simplify right side
    2,688,029.20x = 3,689,728,119,832.56
  5. Step 5: Solve for x
    x = 3,689,728,119,832.56/2,688,029.20
  6. Step 6: Final answer
    x = 1,372,651.80

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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.