Home / 667,249.24-920,869.82-380,812.18

Finding the Fourth Proportional to 667,249.24, 920,869.82 and 380,812.18

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Solution

The fourth proportional to 667,249.24, 920,869.82 and 380,812.18 is: 525,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,249.24 : 920,869.82 = 380,812.18 : x
  2. Step 2: Convert to fraction form
    667,249.24/920,869.82 = 380,812.18/x
  3. Step 3: Cross multiply
    667,249.24x = 920,869.82 × 380,812.18
  4. Step 4: Simplify right side
    667,249.24x = 350,678,441,746.35
  5. Step 5: Solve for x
    x = 350,678,441,746.35/667,249.24
  6. Step 6: Final answer
    x = 525,558.40

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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.