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Finding the Fourth Proportional to 691,912.48, 954,838.80 and 373,960.48

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Solution

The fourth proportional to 691,912.48, 954,838.80 and 373,960.48 is: 516,065.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,912.48 : 954,838.80 = 373,960.48 : x
  2. Step 2: Convert to fraction form
    691,912.48/954,838.80 = 373,960.48/x
  3. Step 3: Cross multiply
    691,912.48x = 954,838.80 × 373,960.48
  4. Step 4: Simplify right side
    691,912.48x = 357,071,975,970.62
  5. Step 5: Solve for x
    x = 357,071,975,970.62/691,912.48
  6. Step 6: Final answer
    x = 516,065.23

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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.