Home / 572,078.69-789,468.59-317,470.85

Finding the Fourth Proportional to 572,078.69, 789,468.59 and 317,470.85

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Solution

The fourth proportional to 572,078.69, 789,468.59 and 317,470.85 is: 438,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,078.69 : 789,468.59 = 317,470.85 : x
  2. Step 2: Convert to fraction form
    572,078.69/789,468.59 = 317,470.85/x
  3. Step 3: Cross multiply
    572,078.69x = 789,468.59 × 317,470.85
  4. Step 4: Simplify right side
    572,078.69x = 250,633,264,315.60
  5. Step 5: Solve for x
    x = 250,633,264,315.60/572,078.69
  6. Step 6: Final answer
    x = 438,109.77

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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.