Home / 653,845.42-902,709.24-518,426.38

Finding the Fourth Proportional to 653,845.42, 902,709.24 and 518,426.38

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Solution

The fourth proportional to 653,845.42, 902,709.24 and 518,426.38 is: 715,747.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,845.42 : 902,709.24 = 518,426.38 : x
  2. Step 2: Convert to fraction form
    653,845.42/902,709.24 = 518,426.38/x
  3. Step 3: Cross multiply
    653,845.42x = 902,709.24 × 518,426.38
  4. Step 4: Simplify right side
    653,845.42x = 467,988,283,485.75
  5. Step 5: Solve for x
    x = 467,988,283,485.75/653,845.42
  6. Step 6: Final answer
    x = 715,747.59

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1.5x scale

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.