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Finding the Fourth Proportional to 449,691.84, 620,501.07 and 265,904.87

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Solution

The fourth proportional to 449,691.84, 620,501.07 and 265,904.87 is: 366,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,691.84 : 620,501.07 = 265,904.87 : x
  2. Step 2: Convert to fraction form
    449,691.84/620,501.07 = 265,904.87/x
  3. Step 3: Cross multiply
    449,691.84x = 620,501.07 × 265,904.87
  4. Step 4: Simplify right side
    449,691.84x = 164,994,254,247.85
  5. Step 5: Solve for x
    x = 164,994,254,247.85/449,691.84
  6. Step 6: Final answer
    x = 366,905.15

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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.