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Finding the Fourth Proportional to 648,658.32, 973,585.44 and 329,034.48

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Solution

The fourth proportional to 648,658.32, 973,585.44 and 329,034.48 is: 493,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,658.32 : 973,585.44 = 329,034.48 : x
  2. Step 2: Convert to fraction form
    648,658.32/973,585.44 = 329,034.48/x
  3. Step 3: Cross multiply
    648,658.32x = 973,585.44 × 329,034.48
  4. Step 4: Simplify right side
    648,658.32x = 320,343,178,985.97
  5. Step 5: Solve for x
    x = 320,343,178,985.97/648,658.32
  6. Step 6: Final answer
    x = 493,855.04

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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.