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Finding the Fourth Proportional to 672,313.86, 927,788.13 and 370,507.86

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Solution

The fourth proportional to 672,313.86, 927,788.13 and 370,507.86 is: 511,298.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,313.86 : 927,788.13 = 370,507.86 : x
  2. Step 2: Convert to fraction form
    672,313.86/927,788.13 = 370,507.86/x
  3. Step 3: Cross multiply
    672,313.86x = 927,788.13 × 370,507.86
  4. Step 4: Simplify right side
    672,313.86x = 343,752,794,579.70
  5. Step 5: Solve for x
    x = 343,752,794,579.70/672,313.86
  6. Step 6: Final answer
    x = 511,298.09

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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.