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Finding the Fourth Proportional to 511,342.80, 767,014.20 and 369,625.20

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Solution

The fourth proportional to 511,342.80, 767,014.20 and 369,625.20 is: 554,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,342.80 : 767,014.20 = 369,625.20 : x
  2. Step 2: Convert to fraction form
    511,342.80/767,014.20 = 369,625.20/x
  3. Step 3: Cross multiply
    511,342.80x = 767,014.20 × 369,625.20
  4. Step 4: Simplify right side
    511,342.80x = 283,507,777,077.84
  5. Step 5: Solve for x
    x = 283,507,777,077.84/511,342.80
  6. Step 6: Final answer
    x = 554,437.80

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Similar ratio
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1.5x scale

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.