Home / 497,408.06-686,533.84-316,084.57

Finding the Fourth Proportional to 497,408.06, 686,533.84 and 316,084.57

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Solution

The fourth proportional to 497,408.06, 686,533.84 and 316,084.57 is: 436,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,408.06 : 686,533.84 = 316,084.57 : x
  2. Step 2: Convert to fraction form
    497,408.06/686,533.84 = 316,084.57/x
  3. Step 3: Cross multiply
    497,408.06x = 686,533.84 × 316,084.57
  4. Step 4: Simplify right side
    497,408.06x = 217,002,751,100.30
  5. Step 5: Solve for x
    x = 217,002,751,100.30/497,408.06
  6. Step 6: Final answer
    x = 436,267.06

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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.