Home / 497,356.08-686,145.96-346,540.56

Finding the Fourth Proportional to 497,356.08, 686,145.96 and 346,540.56

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Solution

The fourth proportional to 497,356.08, 686,145.96 and 346,540.56 is: 478,082.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,356.08 : 686,145.96 = 346,540.56 : x
  2. Step 2: Convert to fraction form
    497,356.08/686,145.96 = 346,540.56/x
  3. Step 3: Cross multiply
    497,356.08x = 686,145.96 × 346,540.56
  4. Step 4: Simplify right side
    497,356.08x = 237,777,405,220.14
  5. Step 5: Solve for x
    x = 237,777,405,220.14/497,356.08
  6. Step 6: Final answer
    x = 478,082.84

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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.