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Finding the Fourth Proportional to 648,283.72, 894,693.71 and 361,830.46

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Solution

The fourth proportional to 648,283.72, 894,693.71 and 361,830.46 is: 499,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,283.72 : 894,693.71 = 361,830.46 : x
  2. Step 2: Convert to fraction form
    648,283.72/894,693.71 = 361,830.46/x
  3. Step 3: Cross multiply
    648,283.72x = 894,693.71 × 361,830.46
  4. Step 4: Simplify right side
    648,283.72x = 323,727,436,648.41
  5. Step 5: Solve for x
    x = 323,727,436,648.41/648,283.72
  6. Step 6: Final answer
    x = 499,360.74

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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.