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Finding the Fourth Proportional to 679,611.60, 937,782 and 373,637.52

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Solution

The fourth proportional to 679,611.60, 937,782 and 373,637.52 is: 515,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,611.60 : 937,782 = 373,637.52 : x
  2. Step 2: Convert to fraction form
    679,611.60/937,782 = 373,637.52/x
  3. Step 3: Cross multiply
    679,611.60x = 937,782 × 373,637.52
  4. Step 4: Simplify right side
    679,611.60x = 350,390,540,780.64
  5. Step 5: Solve for x
    x = 350,390,540,780.64/679,611.60
  6. Step 6: Final answer
    x = 515,574.69

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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.