Home / 498,938.67-688,536.04-284,078.83

Finding the Fourth Proportional to 498,938.67, 688,536.04 and 284,078.83

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Solution

The fourth proportional to 498,938.67, 688,536.04 and 284,078.83 is: 392,029.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,938.67 : 688,536.04 = 284,078.83 : x
  2. Step 2: Convert to fraction form
    498,938.67/688,536.04 = 284,078.83/x
  3. Step 3: Cross multiply
    498,938.67x = 688,536.04 × 284,078.83
  4. Step 4: Simplify right side
    498,938.67x = 195,598,512,656.03
  5. Step 5: Solve for x
    x = 195,598,512,656.03/498,938.67
  6. Step 6: Final answer
    x = 392,029.17

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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.