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Finding the Fourth Proportional to 580,132.48, 800,570.42 and 321,994.39

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Solution

The fourth proportional to 580,132.48, 800,570.42 and 321,994.39 is: 444,345.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,132.48 : 800,570.42 = 321,994.39 : x
  2. Step 2: Convert to fraction form
    580,132.48/800,570.42 = 321,994.39/x
  3. Step 3: Cross multiply
    580,132.48x = 800,570.42 × 321,994.39
  4. Step 4: Simplify right side
    580,132.48x = 257,779,183,137.09
  5. Step 5: Solve for x
    x = 257,779,183,137.09/580,132.48
  6. Step 6: Final answer
    x = 444,345.37

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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.