Home / 572,376.61-789,840.21-317,707.75

Finding the Fourth Proportional to 572,376.61, 789,840.21 and 317,707.75

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Solution

The fourth proportional to 572,376.61, 789,840.21 and 317,707.75 is: 438,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,376.61 : 789,840.21 = 317,707.75 : x
  2. Step 2: Convert to fraction form
    572,376.61/789,840.21 = 317,707.75/x
  3. Step 3: Cross multiply
    572,376.61x = 789,840.21 × 317,707.75
  4. Step 4: Simplify right side
    572,376.61x = 250,938,355,978.63
  5. Step 5: Solve for x
    x = 250,938,355,978.63/572,376.61
  6. Step 6: Final answer
    x = 438,414.76

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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.