Home / 572,379.61-789,844.35-317,710.75

Finding the Fourth Proportional to 572,379.61, 789,844.35 and 317,710.75

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Solution

The fourth proportional to 572,379.61, 789,844.35 and 317,710.75 is: 438,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,379.61 : 789,844.35 = 317,710.75 : x
  2. Step 2: Convert to fraction form
    572,379.61/789,844.35 = 317,710.75/x
  3. Step 3: Cross multiply
    572,379.61x = 789,844.35 × 317,710.75
  4. Step 4: Simplify right side
    572,379.61x = 250,942,040,821.76
  5. Step 5: Solve for x
    x = 250,942,040,821.76/572,379.61
  6. Step 6: Final answer
    x = 438,418.90

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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.