Home / 1,425,467.41-2,138,178.45-345,988.90

Finding the Fourth Proportional to 1,425,467.41, 2,138,178.45 and 345,988.90

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Solution

The fourth proportional to 1,425,467.41, 2,138,178.45 and 345,988.90 is: 518,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,467.41 : 2,138,178.45 = 345,988.90 : x
  2. Step 2: Convert to fraction form
    1,425,467.41/2,138,178.45 = 345,988.90/x
  3. Step 3: Cross multiply
    1,425,467.41x = 2,138,178.45 × 345,988.90
  4. Step 4: Simplify right side
    1,425,467.41x = 739,786,002,127.25
  5. Step 5: Solve for x
    x = 739,786,002,127.25/1,425,467.41
  6. Step 6: Final answer
    x = 518,977.84

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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.