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Finding the Fourth Proportional to 449,496.74, 620,303.61 and 248,292.74

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Solution

The fourth proportional to 449,496.74, 620,303.61 and 248,292.74 is: 342,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,496.74 : 620,303.61 = 248,292.74 : x
  2. Step 2: Convert to fraction form
    449,496.74/620,303.61 = 248,292.74/x
  3. Step 3: Cross multiply
    449,496.74x = 620,303.61 × 248,292.74
  4. Step 4: Simplify right side
    449,496.74x = 154,016,882,958.79
  5. Step 5: Solve for x
    x = 154,016,882,958.79/449,496.74
  6. Step 6: Final answer
    x = 342,642.94

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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.