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Finding the Fourth Proportional to 667,293.63, 920,828.01 and 376,964.76

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Solution

The fourth proportional to 667,293.63, 920,828.01 and 376,964.76 is: 520,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,293.63 : 920,828.01 = 376,964.76 : x
  2. Step 2: Convert to fraction form
    667,293.63/920,828.01 = 376,964.76/x
  3. Step 3: Cross multiply
    667,293.63x = 920,828.01 × 376,964.76
  4. Step 4: Simplify right side
    667,293.63x = 347,119,705,186.79
  5. Step 5: Solve for x
    x = 347,119,705,186.79/667,293.63
  6. Step 6: Final answer
    x = 520,190.35

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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.