Home / 572,113.44-789,661.68-390,898.62

Finding the Fourth Proportional to 572,113.44, 789,661.68 and 390,898.62

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Solution

The fourth proportional to 572,113.44, 789,661.68 and 390,898.62 is: 539,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,113.44 : 789,661.68 = 390,898.62 : x
  2. Step 2: Convert to fraction form
    572,113.44/789,661.68 = 390,898.62/x
  3. Step 3: Cross multiply
    572,113.44x = 789,661.68 × 390,898.62
  4. Step 4: Simplify right side
    572,113.44x = 308,677,660,978.88
  5. Step 5: Solve for x
    x = 308,677,660,978.88/572,113.44
  6. Step 6: Final answer
    x = 539,539.26

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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.