Home / 497,621.62-686,501.27-316,236.29

Finding the Fourth Proportional to 497,621.62, 686,501.27 and 316,236.29

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Solution

The fourth proportional to 497,621.62, 686,501.27 and 316,236.29 is: 436,268.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,621.62 : 686,501.27 = 316,236.29 : x
  2. Step 2: Convert to fraction form
    497,621.62/686,501.27 = 316,236.29/x
  3. Step 3: Cross multiply
    497,621.62x = 686,501.27 × 316,236.29
  4. Step 4: Simplify right side
    497,621.62x = 217,096,614,705.09
  5. Step 5: Solve for x
    x = 217,096,614,705.09/497,621.62
  6. Step 6: Final answer
    x = 436,268.46

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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.