Home / 389,376.86-584,062.65-209,546.90

Finding the Fourth Proportional to 389,376.86, 584,062.65 and 209,546.90

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Solution

The fourth proportional to 389,376.86, 584,062.65 and 209,546.90 is: 314,318.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,376.86 : 584,062.65 = 209,546.90 : x
  2. Step 2: Convert to fraction form
    389,376.86/584,062.65 = 209,546.90/x
  3. Step 3: Cross multiply
    389,376.86x = 584,062.65 × 209,546.90
  4. Step 4: Simplify right side
    389,376.86x = 122,388,516,983.21
  5. Step 5: Solve for x
    x = 122,388,516,983.21/389,376.86
  6. Step 6: Final answer
    x = 314,318.93

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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.