Home / 572,290.20-789,830.46-317,723.40

Finding the Fourth Proportional to 572,290.20, 789,830.46 and 317,723.40

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Solution

The fourth proportional to 572,290.20, 789,830.46 and 317,723.40 is: 438,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,290.20 : 789,830.46 = 317,723.40 : x
  2. Step 2: Convert to fraction form
    572,290.20/789,830.46 = 317,723.40/x
  3. Step 3: Cross multiply
    572,290.20x = 789,830.46 × 317,723.40
  4. Step 4: Simplify right side
    572,290.20x = 250,947,619,174.76
  5. Step 5: Solve for x
    x = 250,947,619,174.76/572,290.20
  6. Step 6: Final answer
    x = 438,497.15

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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.