Home / 492,644.22-679,848.68-266,289.72

Finding the Fourth Proportional to 492,644.22, 679,848.68 and 266,289.72

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Solution

The fourth proportional to 492,644.22, 679,848.68 and 266,289.72 is: 367,479.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,644.22 : 679,848.68 = 266,289.72 : x
  2. Step 2: Convert to fraction form
    492,644.22/679,848.68 = 266,289.72/x
  3. Step 3: Cross multiply
    492,644.22x = 679,848.68 × 266,289.72
  4. Step 4: Simplify right side
    492,644.22x = 181,036,714,639.57
  5. Step 5: Solve for x
    x = 181,036,714,639.57/492,644.22
  6. Step 6: Final answer
    x = 367,479.63

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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.