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Finding the Fourth Proportional to 648,274.48, 894,680.88 and 361,821.22

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Solution

The fourth proportional to 648,274.48, 894,680.88 and 361,821.22 is: 499,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,274.48 : 894,680.88 = 361,821.22 : x
  2. Step 2: Convert to fraction form
    648,274.48/894,680.88 = 361,821.22/x
  3. Step 3: Cross multiply
    648,274.48x = 894,680.88 × 361,821.22
  4. Step 4: Simplify right side
    648,274.48x = 323,714,527,512.27
  5. Step 5: Solve for x
    x = 323,714,527,512.27/648,274.48
  6. Step 6: Final answer
    x = 499,347.94

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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.