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Finding the Fourth Proportional to 410,990.57, 616,485.95 and 268,955.45

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Solution

The fourth proportional to 410,990.57, 616,485.95 and 268,955.45 is: 403,433.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,990.57 : 616,485.95 = 268,955.45 : x
  2. Step 2: Convert to fraction form
    410,990.57/616,485.95 = 268,955.45/x
  3. Step 3: Cross multiply
    410,990.57x = 616,485.95 × 268,955.45
  4. Step 4: Simplify right side
    410,990.57x = 165,807,253,690.89
  5. Step 5: Solve for x
    x = 165,807,253,690.89/410,990.57
  6. Step 6: Final answer
    x = 403,433.24

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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.