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Finding the Fourth Proportional to 717,608.80, 1,076,326.80 and 296,840.80

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Solution

The fourth proportional to 717,608.80, 1,076,326.80 and 296,840.80 is: 445,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,608.80 : 1,076,326.80 = 296,840.80 : x
  2. Step 2: Convert to fraction form
    717,608.80/1,076,326.80 = 296,840.80/x
  3. Step 3: Cross multiply
    717,608.80x = 1,076,326.80 × 296,840.80
  4. Step 4: Simplify right side
    717,608.80x = 319,497,708,373.44
  5. Step 5: Solve for x
    x = 319,497,708,373.44/717,608.80
  6. Step 6: Final answer
    x = 445,225.46

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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.