Home / 572,171.49-789,570.05-317,520.45

Finding the Fourth Proportional to 572,171.49, 789,570.05 and 317,520.45

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Solution

The fourth proportional to 572,171.49, 789,570.05 and 317,520.45 is: 438,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,171.49 : 789,570.05 = 317,520.45 : x
  2. Step 2: Convert to fraction form
    572,171.49/789,570.05 = 317,520.45/x
  3. Step 3: Cross multiply
    572,171.49x = 789,570.05 × 317,520.45
  4. Step 4: Simplify right side
    572,171.49x = 250,704,635,994.92
  5. Step 5: Solve for x
    x = 250,704,635,994.92/572,171.49
  6. Step 6: Final answer
    x = 438,163.45

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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.