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Finding the Fourth Proportional to 572,703.70, 858,796.35 and 256,998.10

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Solution

The fourth proportional to 572,703.70, 858,796.35 and 256,998.10 is: 385,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,703.70 : 858,796.35 = 256,998.10 : x
  2. Step 2: Convert to fraction form
    572,703.70/858,796.35 = 256,998.10/x
  3. Step 3: Cross multiply
    572,703.70x = 858,796.35 × 256,998.10
  4. Step 4: Simplify right side
    572,703.70x = 220,709,030,236.94
  5. Step 5: Solve for x
    x = 220,709,030,236.94/572,703.70
  6. Step 6: Final answer
    x = 385,380.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.