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Finding the Fourth Proportional to 455,431.89, 628,551.42 and 264,445.29

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Solution

The fourth proportional to 455,431.89, 628,551.42 and 264,445.29 is: 364,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,431.89 : 628,551.42 = 264,445.29 : x
  2. Step 2: Convert to fraction form
    455,431.89/628,551.42 = 264,445.29/x
  3. Step 3: Cross multiply
    455,431.89x = 628,551.42 × 264,445.29
  4. Step 4: Simplify right side
    455,431.89x = 166,217,462,541.81
  5. Step 5: Solve for x
    x = 166,217,462,541.81/455,431.89
  6. Step 6: Final answer
    x = 364,966.67

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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.