Home / 427,397.10-589,622.67-257,534.70

Finding the Fourth Proportional to 427,397.10, 589,622.67 and 257,534.70

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Solution

The fourth proportional to 427,397.10, 589,622.67 and 257,534.70 is: 355,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,397.10 : 589,622.67 = 257,534.70 : x
  2. Step 2: Convert to fraction form
    427,397.10/589,622.67 = 257,534.70/x
  3. Step 3: Cross multiply
    427,397.10x = 589,622.67 × 257,534.70
  4. Step 4: Simplify right side
    427,397.10x = 151,848,297,431.65
  5. Step 5: Solve for x
    x = 151,848,297,431.65/427,397.10
  6. Step 6: Final answer
    x = 355,286.21

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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.