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Finding the Fourth Proportional to 580,742.55, 801,398.68 and 322,637.60

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Solution

The fourth proportional to 580,742.55, 801,398.68 and 322,637.60 is: 445,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,742.55 : 801,398.68 = 322,637.60 : x
  2. Step 2: Convert to fraction form
    580,742.55/801,398.68 = 322,637.60/x
  3. Step 3: Cross multiply
    580,742.55x = 801,398.68 × 322,637.60
  4. Step 4: Simplify right side
    580,742.55x = 258,561,347,955.27
  5. Step 5: Solve for x
    x = 258,561,347,955.27/580,742.55
  6. Step 6: Final answer
    x = 445,225.42

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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.