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Finding the Fourth Proportional to 648,258.72, 894,641.94 and 361,834.62

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Solution

The fourth proportional to 648,258.72, 894,641.94 and 361,834.62 is: 499,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,258.72 : 894,641.94 = 361,834.62 : x
  2. Step 2: Convert to fraction form
    648,258.72/894,641.94 = 361,834.62/x
  3. Step 3: Cross multiply
    648,258.72x = 894,641.94 × 361,834.62
  4. Step 4: Simplify right side
    648,258.72x = 323,712,426,395.96
  5. Step 5: Solve for x
    x = 323,712,426,395.96/648,258.72
  6. Step 6: Final answer
    x = 499,356.84

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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.