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Finding the Fourth Proportional to 679,591.08, 937,859.79 and 373,690.77

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Solution

The fourth proportional to 679,591.08, 937,859.79 and 373,690.77 is: 515,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,591.08 : 937,859.79 = 373,690.77 : x
  2. Step 2: Convert to fraction form
    679,591.08/937,859.79 = 373,690.77/x
  3. Step 3: Cross multiply
    679,591.08x = 937,859.79 × 373,690.77
  4. Step 4: Simplify right side
    679,591.08x = 350,469,547,077.14
  5. Step 5: Solve for x
    x = 350,469,547,077.14/679,591.08
  6. Step 6: Final answer
    x = 515,706.51

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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.