Home / 572,025.82-789,393.10-317,376.40

Finding the Fourth Proportional to 572,025.82, 789,393.10 and 317,376.40

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Solution

The fourth proportional to 572,025.82, 789,393.10 and 317,376.40 is: 437,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,025.82 : 789,393.10 = 317,376.40 : x
  2. Step 2: Convert to fraction form
    572,025.82/789,393.10 = 317,376.40/x
  3. Step 3: Cross multiply
    572,025.82x = 789,393.10 × 317,376.40
  4. Step 4: Simplify right side
    572,025.82x = 250,534,734,728.99
  5. Step 5: Solve for x
    x = 250,534,734,728.99/572,025.82
  6. Step 6: Final answer
    x = 437,978.02

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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.