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Finding the Fourth Proportional to 648,274.46, 894,708.99 and 361,812.96

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Solution

The fourth proportional to 648,274.46, 894,708.99 and 361,812.96 is: 499,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,274.46 : 894,708.99 = 361,812.96 : x
  2. Step 2: Convert to fraction form
    648,274.46/894,708.99 = 361,812.96/x
  3. Step 3: Cross multiply
    648,274.46x = 894,708.99 × 361,812.96
  4. Step 4: Simplify right side
    648,274.46x = 323,717,308,010.51
  5. Step 5: Solve for x
    x = 323,717,308,010.51/648,274.46
  6. Step 6: Final answer
    x = 499,352.25

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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.