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Finding the Fourth Proportional to 672,313.80, 927,780.66 and 366,392.64

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Solution

The fourth proportional to 672,313.80, 927,780.66 and 366,392.64 is: 505,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,313.80 : 927,780.66 = 366,392.64 : x
  2. Step 2: Convert to fraction form
    672,313.80/927,780.66 = 366,392.64/x
  3. Step 3: Cross multiply
    672,313.80x = 927,780.66 × 366,392.64
  4. Step 4: Simplify right side
    672,313.80x = 339,932,005,358.34
  5. Step 5: Solve for x
    x = 339,932,005,358.34/672,313.80
  6. Step 6: Final answer
    x = 505,615.09

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1.5x scale

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.