Home / 572,143.41-789,576.03-330,421.59

Finding the Fourth Proportional to 572,143.41, 789,576.03 and 330,421.59

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Solution

The fourth proportional to 572,143.41, 789,576.03 and 330,421.59 is: 455,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,143.41 : 789,576.03 = 330,421.59 : x
  2. Step 2: Convert to fraction form
    572,143.41/789,576.03 = 330,421.59/x
  3. Step 3: Cross multiply
    572,143.41x = 789,576.03 × 330,421.59
  4. Step 4: Simplify right side
    572,143.41x = 260,892,967,258.49
  5. Step 5: Solve for x
    x = 260,892,967,258.49/572,143.41
  6. Step 6: Final answer
    x = 455,992.26

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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.