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Finding the Fourth Proportional to 572,312.49, 789,789.29 and 314,183.01

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Solution

The fourth proportional to 572,312.49, 789,789.29 and 314,183.01 is: 433,571.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,312.49 : 789,789.29 = 314,183.01 : x
  2. Step 2: Convert to fraction form
    572,312.49/789,789.29 = 314,183.01/x
  3. Step 3: Cross multiply
    572,312.49x = 789,789.29 × 314,183.01
  4. Step 4: Simplify right side
    572,312.49x = 248,138,374,827.05
  5. Step 5: Solve for x
    x = 248,138,374,827.05/572,312.49
  6. Step 6: Final answer
    x = 433,571.48

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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.