Home / 507,121.03-699,845.89-289,365.16

Finding the Fourth Proportional to 507,121.03, 699,845.89 and 289,365.16

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Solution

The fourth proportional to 507,121.03, 699,845.89 and 289,365.16 is: 399,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,121.03 : 699,845.89 = 289,365.16 : x
  2. Step 2: Convert to fraction form
    507,121.03/699,845.89 = 289,365.16/x
  3. Step 3: Cross multiply
    507,121.03x = 699,845.89 × 289,365.16
  4. Step 4: Simplify right side
    507,121.03x = 202,511,016,096.18
  5. Step 5: Solve for x
    x = 202,511,016,096.18/507,121.03
  6. Step 6: Final answer
    x = 399,334.68

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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.