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Finding the Fourth Proportional to 670,863.30, 925,774.67 and 384,364.94

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Solution

The fourth proportional to 670,863.30, 925,774.67 and 384,364.94 is: 530,414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,863.30 : 925,774.67 = 384,364.94 : x
  2. Step 2: Convert to fraction form
    670,863.30/925,774.67 = 384,364.94/x
  3. Step 3: Cross multiply
    670,863.30x = 925,774.67 × 384,364.94
  4. Step 4: Simplify right side
    670,863.30x = 355,835,318,937.37
  5. Step 5: Solve for x
    x = 355,835,318,937.37/670,863.30
  6. Step 6: Final answer
    x = 530,414.05

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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.