Home / 424,815.81-637,222.92-125,506.64

Finding the Fourth Proportional to 424,815.81, 637,222.92 and 125,506.64

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Solution

The fourth proportional to 424,815.81, 637,222.92 and 125,506.64 is: 188,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,815.81 : 637,222.92 = 125,506.64 : x
  2. Step 2: Convert to fraction form
    424,815.81/637,222.92 = 125,506.64/x
  3. Step 3: Cross multiply
    424,815.81x = 637,222.92 × 125,506.64
  4. Step 4: Simplify right side
    424,815.81x = 79,975,707,620.19
  5. Step 5: Solve for x
    x = 79,975,707,620.19/424,815.81
  6. Step 6: Final answer
    x = 188,259.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.