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Finding the Fourth Proportional to 703,423.46, 970,724.74 and 381,133.81

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Solution

The fourth proportional to 703,423.46, 970,724.74 and 381,133.81 is: 525,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,423.46 : 970,724.74 = 381,133.81 : x
  2. Step 2: Convert to fraction form
    703,423.46/970,724.74 = 381,133.81/x
  3. Step 3: Cross multiply
    703,423.46x = 970,724.74 × 381,133.81
  4. Step 4: Simplify right side
    703,423.46x = 369,976,018,617.46
  5. Step 5: Solve for x
    x = 369,976,018,617.46/703,423.46
  6. Step 6: Final answer
    x = 525,964.86

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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.