Home / 499,727.12-689,623.53-281,982.02

Finding the Fourth Proportional to 499,727.12, 689,623.53 and 281,982.02

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Solution

The fourth proportional to 499,727.12, 689,623.53 and 281,982.02 is: 389,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,727.12 : 689,623.53 = 281,982.02 : x
  2. Step 2: Convert to fraction form
    499,727.12/689,623.53 = 281,982.02/x
  3. Step 3: Cross multiply
    499,727.12x = 689,623.53 × 281,982.02
  4. Step 4: Simplify right side
    499,727.12x = 194,461,432,580.81
  5. Step 5: Solve for x
    x = 194,461,432,580.81/499,727.12
  6. Step 6: Final answer
    x = 389,135.24

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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.