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Finding the Fourth Proportional to 620,492.32, 930,627.68 and 165,086.17

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Solution

The fourth proportional to 620,492.32, 930,627.68 and 165,086.17 is: 247,599.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,492.32 : 930,627.68 = 165,086.17 : x
  2. Step 2: Convert to fraction form
    620,492.32/930,627.68 = 165,086.17/x
  3. Step 3: Cross multiply
    620,492.32x = 930,627.68 × 165,086.17
  4. Step 4: Simplify right side
    620,492.32x = 153,633,757,163.80
  5. Step 5: Solve for x
    x = 153,633,757,163.80/620,492.32
  6. Step 6: Final answer
    x = 247,599.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.