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Finding the Fourth Proportional to 580,499.20, 801,090.40 and 322,376.32

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Solution

The fourth proportional to 580,499.20, 801,090.40 and 322,376.32 is: 444,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,499.20 : 801,090.40 = 322,376.32 : x
  2. Step 2: Convert to fraction form
    580,499.20/801,090.40 = 322,376.32/x
  3. Step 3: Cross multiply
    580,499.20x = 801,090.40 × 322,376.32
  4. Step 4: Simplify right side
    580,499.20x = 258,252,575,139.33
  5. Step 5: Solve for x
    x = 258,252,575,139.33/580,499.20
  6. Step 6: Final answer
    x = 444,880.16

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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.