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Finding the Fourth Proportional to 642,032.93, 886,003.72 and 370,099.33

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Solution

The fourth proportional to 642,032.93, 886,003.72 and 370,099.33 is: 510,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,032.93 : 886,003.72 = 370,099.33 : x
  2. Step 2: Convert to fraction form
    642,032.93/886,003.72 = 370,099.33/x
  3. Step 3: Cross multiply
    642,032.93x = 886,003.72 × 370,099.33
  4. Step 4: Simplify right side
    642,032.93x = 327,909,380,009.25
  5. Step 5: Solve for x
    x = 327,909,380,009.25/642,032.93
  6. Step 6: Final answer
    x = 510,736.08

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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.