Home / 1,423,991.78-2,135,715.50-426,719.78

Finding the Fourth Proportional to 1,423,991.78, 2,135,715.50 and 426,719.78

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Solution

The fourth proportional to 1,423,991.78, 2,135,715.50 and 426,719.78 is: 639,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,991.78 : 2,135,715.50 = 426,719.78 : x
  2. Step 2: Convert to fraction form
    1,423,991.78/2,135,715.50 = 426,719.78/x
  3. Step 3: Cross multiply
    1,423,991.78x = 2,135,715.50 × 426,719.78
  4. Step 4: Simplify right side
    1,423,991.78x = 911,352,048,302.59
  5. Step 5: Solve for x
    x = 911,352,048,302.59/1,423,991.78
  6. Step 6: Final answer
    x = 639,998.11

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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.