Home / 499,996.46-690,084.78-282,271.34

Finding the Fourth Proportional to 499,996.46, 690,084.78 and 282,271.34

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Solution

The fourth proportional to 499,996.46, 690,084.78 and 282,271.34 is: 389,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,996.46 : 690,084.78 = 282,271.34 : x
  2. Step 2: Convert to fraction form
    499,996.46/690,084.78 = 282,271.34/x
  3. Step 3: Cross multiply
    499,996.46x = 690,084.78 × 282,271.34
  4. Step 4: Simplify right side
    499,996.46x = 194,791,155,564.21
  5. Step 5: Solve for x
    x = 194,791,155,564.21/499,996.46
  6. Step 6: Final answer
    x = 389,585.07

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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.