Home / 648,481.43-973,315.42-328,853.90

Finding the Fourth Proportional to 648,481.43, 973,315.42 and 328,853.90

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Solution

The fourth proportional to 648,481.43, 973,315.42 and 328,853.90 is: 493,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,481.43 : 973,315.42 = 328,853.90 : x
  2. Step 2: Convert to fraction form
    648,481.43/973,315.42 = 328,853.90/x
  3. Step 3: Cross multiply
    648,481.43x = 973,315.42 × 328,853.90
  4. Step 4: Simplify right side
    648,481.43x = 320,078,566,108.43
  5. Step 5: Solve for x
    x = 320,078,566,108.43/648,481.43
  6. Step 6: Final answer
    x = 493,581.70

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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.