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Finding the Fourth Proportional to 679,478.53, 937,656.46 and 373,552.69

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Solution

The fourth proportional to 679,478.53, 937,656.46 and 373,552.69 is: 515,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,478.53 : 937,656.46 = 373,552.69 : x
  2. Step 2: Convert to fraction form
    679,478.53/937,656.46 = 373,552.69/x
  3. Step 3: Cross multiply
    679,478.53x = 937,656.46 × 373,552.69
  4. Step 4: Simplify right side
    679,478.53x = 350,264,092,928.88
  5. Step 5: Solve for x
    x = 350,264,092,928.88/679,478.53
  6. Step 6: Final answer
    x = 515,489.57

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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.