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Finding the Fourth Proportional to 676,893.80, 934,111.50 and 375,087.80

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Solution

The fourth proportional to 676,893.80, 934,111.50 and 375,087.80 is: 517,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,893.80 : 934,111.50 = 375,087.80 : x
  2. Step 2: Convert to fraction form
    676,893.80/934,111.50 = 375,087.80/x
  3. Step 3: Cross multiply
    676,893.80x = 934,111.50 × 375,087.80
  4. Step 4: Simplify right side
    676,893.80x = 350,373,827,489.70
  5. Step 5: Solve for x
    x = 350,373,827,489.70/676,893.80
  6. Step 6: Final answer
    x = 517,620.09

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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.