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Finding the Fourth Proportional to 449,263.82, 620,009.34 and 245,333.72

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Solution

The fourth proportional to 449,263.82, 620,009.34 and 245,333.72 is: 338,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,263.82 : 620,009.34 = 245,333.72 : x
  2. Step 2: Convert to fraction form
    449,263.82/620,009.34 = 245,333.72/x
  3. Step 3: Cross multiply
    449,263.82x = 620,009.34 × 245,333.72
  4. Step 4: Simplify right side
    449,263.82x = 152,109,197,816.95
  5. Step 5: Solve for x
    x = 152,109,197,816.95/449,263.82
  6. Step 6: Final answer
    x = 338,574.33

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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.