Home / 379,637.24-523,873.08-209,858

Finding the Fourth Proportional to 379,637.24, 523,873.08 and 209,858

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Solution

The fourth proportional to 379,637.24, 523,873.08 and 209,858 is: 289,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,637.24 : 523,873.08 = 209,858 : x
  2. Step 2: Convert to fraction form
    379,637.24/523,873.08 = 209,858/x
  3. Step 3: Cross multiply
    379,637.24x = 523,873.08 × 209,858
  4. Step 4: Simplify right side
    379,637.24x = 109,938,956,822.64
  5. Step 5: Solve for x
    x = 109,938,956,822.64/379,637.24
  6. Step 6: Final answer
    x = 289,589.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.