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Finding the Fourth Proportional to 702,912.54, 970,023.95 and 380,622.62

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Solution

The fourth proportional to 702,912.54, 970,023.95 and 380,622.62 is: 525,261.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,912.54 : 970,023.95 = 380,622.62 : x
  2. Step 2: Convert to fraction form
    702,912.54/970,023.95 = 380,622.62/x
  3. Step 3: Cross multiply
    702,912.54x = 970,023.95 × 380,622.62
  4. Step 4: Simplify right side
    702,912.54x = 369,213,060,688.37
  5. Step 5: Solve for x
    x = 369,213,060,688.37/702,912.54
  6. Step 6: Final answer
    x = 525,261.74

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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.