Home / 497,105.19-686,052.87-306,230.31

Finding the Fourth Proportional to 497,105.19, 686,052.87 and 306,230.31

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Solution

The fourth proportional to 497,105.19, 686,052.87 and 306,230.31 is: 422,627.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,105.19 : 686,052.87 = 306,230.31 : x
  2. Step 2: Convert to fraction form
    497,105.19/686,052.87 = 306,230.31/x
  3. Step 3: Cross multiply
    497,105.19x = 686,052.87 × 306,230.31
  4. Step 4: Simplify right side
    497,105.19x = 210,090,183,056.49
  5. Step 5: Solve for x
    x = 210,090,183,056.49/497,105.19
  6. Step 6: Final answer
    x = 422,627.22

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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.