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Finding the Fourth Proportional to 561,722.78, 841,838.97 and 245,835.74

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Solution

The fourth proportional to 561,722.78, 841,838.97 and 245,835.74 is: 368,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,722.78 : 841,838.97 = 245,835.74 : x
  2. Step 2: Convert to fraction form
    561,722.78/841,838.97 = 245,835.74/x
  3. Step 3: Cross multiply
    561,722.78x = 841,838.97 × 245,835.74
  4. Step 4: Simplify right side
    561,722.78x = 206,954,106,150.79
  5. Step 5: Solve for x
    x = 206,954,106,150.79/561,722.78
  6. Step 6: Final answer
    x = 368,427.48

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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.