Home / 379,784.70-524,027.07-209,986.02

Finding the Fourth Proportional to 379,784.70, 524,027.07 and 209,986.02

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Solution

The fourth proportional to 379,784.70, 524,027.07 and 209,986.02 is: 289,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,784.70 : 524,027.07 = 209,986.02 : x
  2. Step 2: Convert to fraction form
    379,784.70/524,027.07 = 209,986.02/x
  3. Step 3: Cross multiply
    379,784.70x = 524,027.07 × 209,986.02
  4. Step 4: Simplify right side
    379,784.70x = 110,038,358,801.56
  5. Step 5: Solve for x
    x = 110,038,358,801.56/379,784.70
  6. Step 6: Final answer
    x = 289,738.79

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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.