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Finding the Fourth Proportional to 676,112, 932,999.08 and 370,129.72

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Solution

The fourth proportional to 676,112, 932,999.08 and 370,129.72 is: 510,759.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,112 : 932,999.08 = 370,129.72 : x
  2. Step 2: Convert to fraction form
    676,112/932,999.08 = 370,129.72/x
  3. Step 3: Cross multiply
    676,112x = 932,999.08 × 370,129.72
  4. Step 4: Simplify right side
    676,112x = 345,330,688,240.66
  5. Step 5: Solve for x
    x = 345,330,688,240.66/676,112
  6. Step 6: Final answer
    x = 510,759.59

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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.