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Finding the Fourth Proportional to 702,691.45, 969,714.53 and 380,401.55

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Solution

The fourth proportional to 702,691.45, 969,714.53 and 380,401.55 is: 524,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,691.45 : 969,714.53 = 380,401.55 : x
  2. Step 2: Convert to fraction form
    702,691.45/969,714.53 = 380,401.55/x
  3. Step 3: Cross multiply
    702,691.45x = 969,714.53 × 380,401.55
  4. Step 4: Simplify right side
    702,691.45x = 368,880,903,518.94
  5. Step 5: Solve for x
    x = 368,880,903,518.94/702,691.45
  6. Step 6: Final answer
    x = 524,954.31

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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.