Home / 557,847.51-769,845.81-316,122.05

Finding the Fourth Proportional to 557,847.51, 769,845.81 and 316,122.05

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Solution

The fourth proportional to 557,847.51, 769,845.81 and 316,122.05 is: 436,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,847.51 : 769,845.81 = 316,122.05 : x
  2. Step 2: Convert to fraction form
    557,847.51/769,845.81 = 316,122.05/x
  3. Step 3: Cross multiply
    557,847.51x = 769,845.81 × 316,122.05
  4. Step 4: Simplify right side
    557,847.51x = 243,365,234,678.80
  5. Step 5: Solve for x
    x = 243,365,234,678.80/557,847.51
  6. Step 6: Final answer
    x = 436,257.63

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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.