Home / 449,428.32-620,185.68-268,344.72

Finding the Fourth Proportional to 449,428.32, 620,185.68 and 268,344.72

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Solution

The fourth proportional to 449,428.32, 620,185.68 and 268,344.72 is: 370,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,428.32 : 620,185.68 = 268,344.72 : x
  2. Step 2: Convert to fraction form
    449,428.32/620,185.68 = 268,344.72/x
  3. Step 3: Cross multiply
    449,428.32x = 620,185.68 × 268,344.72
  4. Step 4: Simplify right side
    449,428.32x = 166,423,552,647.61
  5. Step 5: Solve for x
    x = 166,423,552,647.61/449,428.32
  6. Step 6: Final answer
    x = 370,300.55

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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.