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Finding the Fourth Proportional to 648,127.15, 894,410.62 and 357,738.66

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Solution

The fourth proportional to 648,127.15, 894,410.62 and 357,738.66 is: 493,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,127.15 : 894,410.62 = 357,738.66 : x
  2. Step 2: Convert to fraction form
    648,127.15/894,410.62 = 357,738.66/x
  3. Step 3: Cross multiply
    648,127.15x = 894,410.62 × 357,738.66
  4. Step 4: Simplify right side
    648,127.15x = 319,965,256,688.57
  5. Step 5: Solve for x
    x = 319,965,256,688.57/648,127.15
  6. Step 6: Final answer
    x = 493,676.68

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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.