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Finding the Fourth Proportional to 572,256.86, 789,751.35 and 317,608.02

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Solution

The fourth proportional to 572,256.86, 789,751.35 and 317,608.02 is: 438,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,256.86 : 789,751.35 = 317,608.02 : x
  2. Step 2: Convert to fraction form
    572,256.86/789,751.35 = 317,608.02/x
  3. Step 3: Cross multiply
    572,256.86x = 789,751.35 × 317,608.02
  4. Step 4: Simplify right side
    572,256.86x = 250,831,362,565.83
  5. Step 5: Solve for x
    x = 250,831,362,565.83/572,256.86
  6. Step 6: Final answer
    x = 438,319.54

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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.