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Finding the Fourth Proportional to 455,355.63, 628,343.06 and 264,331.71

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Solution

The fourth proportional to 455,355.63, 628,343.06 and 264,331.71 is: 364,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,355.63 : 628,343.06 = 264,331.71 : x
  2. Step 2: Convert to fraction form
    455,355.63/628,343.06 = 264,331.71/x
  3. Step 3: Cross multiply
    455,355.63x = 628,343.06 × 264,331.71
  4. Step 4: Simplify right side
    455,355.63x = 166,090,994,194.77
  5. Step 5: Solve for x
    x = 166,090,994,194.77/455,355.63
  6. Step 6: Final answer
    x = 364,750.06

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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.