Home / 499,260.84-688,900.32-284,405.10

Finding the Fourth Proportional to 499,260.84, 688,900.32 and 284,405.10

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Solution

The fourth proportional to 499,260.84, 688,900.32 and 284,405.10 is: 392,433.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,260.84 : 688,900.32 = 284,405.10 : x
  2. Step 2: Convert to fraction form
    499,260.84/688,900.32 = 284,405.10/x
  3. Step 3: Cross multiply
    499,260.84x = 688,900.32 × 284,405.10
  4. Step 4: Simplify right side
    499,260.84x = 195,926,764,399.63
  5. Step 5: Solve for x
    x = 195,926,764,399.63/499,260.84
  6. Step 6: Final answer
    x = 392,433.67

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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.