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Finding the Fourth Proportional to 703,217.67, 970,445.07 and 380,927.78

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Solution

The fourth proportional to 703,217.67, 970,445.07 and 380,927.78 is: 525,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,217.67 : 970,445.07 = 380,927.78 : x
  2. Step 2: Convert to fraction form
    703,217.67/970,445.07 = 380,927.78/x
  3. Step 3: Cross multiply
    703,217.67x = 970,445.07 × 380,927.78
  4. Step 4: Simplify right side
    703,217.67x = 369,669,484,913.99
  5. Step 5: Solve for x
    x = 369,669,484,913.99/703,217.67
  6. Step 6: Final answer
    x = 525,682.88

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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.