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Finding the Fourth Proportional to 572,416.74, 789,895.53 and 317,747.88

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Solution

The fourth proportional to 572,416.74, 789,895.53 and 317,747.88 is: 438,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,416.74 : 789,895.53 = 317,747.88 : x
  2. Step 2: Convert to fraction form
    572,416.74/789,895.53 = 317,747.88/x
  3. Step 3: Cross multiply
    572,416.74x = 789,895.53 × 317,747.88
  4. Step 4: Simplify right side
    572,416.74x = 250,987,630,078.98
  5. Step 5: Solve for x
    x = 250,987,630,078.98/572,416.74
  6. Step 6: Final answer
    x = 438,470.11

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1.5x scale

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.