Home / 878,902.89-1,318,218.33-339,080.43

Finding the Fourth Proportional to 878,902.89, 1,318,218.33 and 339,080.43

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Solution

The fourth proportional to 878,902.89, 1,318,218.33 and 339,080.43 is: 508,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,902.89 : 1,318,218.33 = 339,080.43 : x
  2. Step 2: Convert to fraction form
    878,902.89/1,318,218.33 = 339,080.43/x
  3. Step 3: Cross multiply
    878,902.89x = 1,318,218.33 × 339,080.43
  4. Step 4: Simplify right side
    878,902.89x = 446,982,038,170.28
  5. Step 5: Solve for x
    x = 446,982,038,170.28/878,902.89
  6. Step 6: Final answer
    x = 508,568.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.