Home / 492,441.14-679,885.04-308,931.30

Finding the Fourth Proportional to 492,441.14, 679,885.04 and 308,931.30

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Solution

The fourth proportional to 492,441.14, 679,885.04 and 308,931.30 is: 426,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,441.14 : 679,885.04 = 308,931.30 : x
  2. Step 2: Convert to fraction form
    492,441.14/679,885.04 = 308,931.30/x
  3. Step 3: Cross multiply
    492,441.14x = 679,885.04 × 308,931.30
  4. Step 4: Simplify right side
    492,441.14x = 210,037,770,030.08
  5. Step 5: Solve for x
    x = 210,037,770,030.08/492,441.14
  6. Step 6: Final answer
    x = 426,523.61

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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.