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Finding the Fourth Proportional to 648,261.99, 894,651.03 and 357,929.55

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Solution

The fourth proportional to 648,261.99, 894,651.03 and 357,929.55 is: 493,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,261.99 : 894,651.03 = 357,929.55 : x
  2. Step 2: Convert to fraction form
    648,261.99/894,651.03 = 357,929.55/x
  3. Step 3: Cross multiply
    648,261.99x = 894,651.03 × 357,929.55
  4. Step 4: Simplify right side
    648,261.99x = 320,222,040,574.94
  5. Step 5: Solve for x
    x = 320,222,040,574.94/648,261.99
  6. Step 6: Final answer
    x = 493,970.10

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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.