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Finding the Fourth Proportional to 684,989.92, 945,252.57 and 379,060.84

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Solution

The fourth proportional to 684,989.92, 945,252.57 and 379,060.84 is: 523,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,989.92 : 945,252.57 = 379,060.84 : x
  2. Step 2: Convert to fraction form
    684,989.92/945,252.57 = 379,060.84/x
  3. Step 3: Cross multiply
    684,989.92x = 945,252.57 × 379,060.84
  4. Step 4: Simplify right side
    684,989.92x = 358,308,233,196.36
  5. Step 5: Solve for x
    x = 358,308,233,196.36/684,989.92
  6. Step 6: Final answer
    x = 523,085.41

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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.