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Finding the Fourth Proportional to 702,902.34, 970,003.86 and 380,611.44

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Solution

The fourth proportional to 702,902.34, 970,003.86 and 380,611.44 is: 525,243.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,902.34 : 970,003.86 = 380,611.44 : x
  2. Step 2: Convert to fraction form
    702,902.34/970,003.86 = 380,611.44/x
  3. Step 3: Cross multiply
    702,902.34x = 970,003.86 × 380,611.44
  4. Step 4: Simplify right side
    702,902.34x = 369,194,565,960.16
  5. Step 5: Solve for x
    x = 369,194,565,960.16/702,902.34
  6. Step 6: Final answer
    x = 525,243.05

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1.5x scale

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.