Home / 423,124.11-634,791.24-209,992.05

Finding the Fourth Proportional to 423,124.11, 634,791.24 and 209,992.05

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Solution

The fourth proportional to 423,124.11, 634,791.24 and 209,992.05 is: 315,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,124.11 : 634,791.24 = 209,992.05 : x
  2. Step 2: Convert to fraction form
    423,124.11/634,791.24 = 209,992.05/x
  3. Step 3: Cross multiply
    423,124.11x = 634,791.24 × 209,992.05
  4. Step 4: Simplify right side
    423,124.11x = 133,301,113,809.64
  5. Step 5: Solve for x
    x = 133,301,113,809.64/423,124.11
  6. Step 6: Final answer
    x = 315,040.22

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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.