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Finding the Fourth Proportional to 570,420.23, 787,223.64 and 325,410.38

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Solution

The fourth proportional to 570,420.23, 787,223.64 and 325,410.38 is: 449,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,420.23 : 787,223.64 = 325,410.38 : x
  2. Step 2: Convert to fraction form
    570,420.23/787,223.64 = 325,410.38/x
  3. Step 3: Cross multiply
    570,420.23x = 787,223.64 × 325,410.38
  4. Step 4: Simplify right side
    570,420.23x = 256,170,743,837.38
  5. Step 5: Solve for x
    x = 256,170,743,837.38/570,420.23
  6. Step 6: Final answer
    x = 449,091.27

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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.