Home / 1,425,397.59-2,138,078.54-345,919.09

Finding the Fourth Proportional to 1,425,397.59, 2,138,078.54 and 345,919.09

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Solution

The fourth proportional to 1,425,397.59, 2,138,078.54 and 345,919.09 is: 518,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,397.59 : 2,138,078.54 = 345,919.09 : x
  2. Step 2: Convert to fraction form
    1,425,397.59/2,138,078.54 = 345,919.09/x
  3. Step 3: Cross multiply
    1,425,397.59x = 2,138,078.54 × 345,919.09
  4. Step 4: Simplify right side
    1,425,397.59x = 739,602,182,905.33
  5. Step 5: Solve for x
    x = 739,602,182,905.33/1,425,397.59
  6. Step 6: Final answer
    x = 518,874.30

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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.