Home / 672,450.63-1,008,126.24-312,845.66

Finding the Fourth Proportional to 672,450.63, 1,008,126.24 and 312,845.66

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Solution

The fourth proportional to 672,450.63, 1,008,126.24 and 312,845.66 is: 469,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,450.63 : 1,008,126.24 = 312,845.66 : x
  2. Step 2: Convert to fraction form
    672,450.63/1,008,126.24 = 312,845.66/x
  3. Step 3: Cross multiply
    672,450.63x = 1,008,126.24 × 312,845.66
  4. Step 4: Simplify right side
    672,450.63x = 315,387,913,875.49
  5. Step 5: Solve for x
    x = 315,387,913,875.49/672,450.63
  6. Step 6: Final answer
    x = 469,012.74

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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.