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Finding the Fourth Proportional to 667,184.46, 920,486.07 and 380,498.46

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Solution

The fourth proportional to 667,184.46, 920,486.07 and 380,498.46 is: 524,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,184.46 : 920,486.07 = 380,498.46 : x
  2. Step 2: Convert to fraction form
    667,184.46/920,486.07 = 380,498.46/x
  3. Step 3: Cross multiply
    667,184.46x = 920,486.07 × 380,498.46
  4. Step 4: Simplify right side
    667,184.46x = 350,243,532,086.45
  5. Step 5: Solve for x
    x = 350,243,532,086.45/667,184.46
  6. Step 6: Final answer
    x = 524,957.57

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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.