Home / 499,967.18-690,044.53-282,242.22

Finding the Fourth Proportional to 499,967.18, 690,044.53 and 282,242.22

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Solution

The fourth proportional to 499,967.18, 690,044.53 and 282,242.22 is: 389,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,967.18 : 690,044.53 = 282,242.22 : x
  2. Step 2: Convert to fraction form
    499,967.18/690,044.53 = 282,242.22/x
  3. Step 3: Cross multiply
    499,967.18x = 690,044.53 × 282,242.22
  4. Step 4: Simplify right side
    499,967.18x = 194,759,700,634.29
  5. Step 5: Solve for x
    x = 194,759,700,634.29/499,967.18
  6. Step 6: Final answer
    x = 389,544.97

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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.