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Finding the Fourth Proportional to 648,168.71, 894,523.73 and 357,837.98

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Solution

The fourth proportional to 648,168.71, 894,523.73 and 357,837.98 is: 493,844.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,168.71 : 894,523.73 = 357,837.98 : x
  2. Step 2: Convert to fraction form
    648,168.71/894,523.73 = 357,837.98/x
  3. Step 3: Cross multiply
    648,168.71x = 894,523.73 × 357,837.98
  4. Step 4: Simplify right side
    648,168.71x = 320,094,558,343.46
  5. Step 5: Solve for x
    x = 320,094,558,343.46/648,168.71
  6. Step 6: Final answer
    x = 493,844.51

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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.