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Finding the Fourth Proportional to 679,646.42, 937,879.95 and 373,735.69

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Solution

The fourth proportional to 679,646.42, 937,879.95 and 373,735.69 is: 515,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,646.42 : 937,879.95 = 373,735.69 : x
  2. Step 2: Convert to fraction form
    679,646.42/937,879.95 = 373,735.69/x
  3. Step 3: Cross multiply
    679,646.42x = 937,879.95 × 373,735.69
  4. Step 4: Simplify right side
    679,646.42x = 350,519,210,250.42
  5. Step 5: Solve for x
    x = 350,519,210,250.42/679,646.42
  6. Step 6: Final answer
    x = 515,737.60

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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.