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Finding the Fourth Proportional to 561,061.58, 842,838.06 and 347,987.03

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Solution

The fourth proportional to 561,061.58, 842,838.06 and 347,987.03 is: 522,753.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,061.58 : 842,838.06 = 347,987.03 : x
  2. Step 2: Convert to fraction form
    561,061.58/842,838.06 = 347,987.03/x
  3. Step 3: Cross multiply
    561,061.58x = 842,838.06 × 347,987.03
  4. Step 4: Simplify right side
    561,061.58x = 293,296,713,270.36
  5. Step 5: Solve for x
    x = 293,296,713,270.36/561,061.58
  6. Step 6: Final answer
    x = 522,753.16

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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.