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Finding the Fourth Proportional to 431,597.02, 646,635.54 and 384,629.37

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Solution

The fourth proportional to 431,597.02, 646,635.54 and 384,629.37 is: 576,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,597.02 : 646,635.54 = 384,629.37 : x
  2. Step 2: Convert to fraction form
    431,597.02/646,635.54 = 384,629.37/x
  3. Step 3: Cross multiply
    431,597.02x = 646,635.54 × 384,629.37
  4. Step 4: Simplify right side
    431,597.02x = 248,715,020,369.81
  5. Step 5: Solve for x
    x = 248,715,020,369.81/431,597.02
  6. Step 6: Final answer
    x = 576,266.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.