Home / 1,377,971.52-2,066,823.60-418,435.44

Finding the Fourth Proportional to 1,377,971.52, 2,066,823.60 and 418,435.44

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Solution

The fourth proportional to 1,377,971.52, 2,066,823.60 and 418,435.44 is: 627,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,971.52 : 2,066,823.60 = 418,435.44 : x
  2. Step 2: Convert to fraction form
    1,377,971.52/2,066,823.60 = 418,435.44/x
  3. Step 3: Cross multiply
    1,377,971.52x = 2,066,823.60 × 418,435.44
  4. Step 4: Simplify right side
    1,377,971.52x = 864,832,242,468.38
  5. Step 5: Solve for x
    x = 864,832,242,468.38/1,377,971.52
  6. Step 6: Final answer
    x = 627,612.57

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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.