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Finding the Fourth Proportional to 583,421.40, 875,132.10 and 394,464.60

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Solution

The fourth proportional to 583,421.40, 875,132.10 and 394,464.60 is: 591,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,421.40 : 875,132.10 = 394,464.60 : x
  2. Step 2: Convert to fraction form
    583,421.40/875,132.10 = 394,464.60/x
  3. Step 3: Cross multiply
    583,421.40x = 875,132.10 × 394,464.60
  4. Step 4: Simplify right side
    583,421.40x = 345,208,633,773.66
  5. Step 5: Solve for x
    x = 345,208,633,773.66/583,421.40
  6. Step 6: Final answer
    x = 591,696.90

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Similar ratio
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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.