Home / 656,540.40-985,588.20-372,457.20

Finding the Fourth Proportional to 656,540.40, 985,588.20 and 372,457.20

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Solution

The fourth proportional to 656,540.40, 985,588.20 and 372,457.20 is: 559,126.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,540.40 : 985,588.20 = 372,457.20 : x
  2. Step 2: Convert to fraction form
    656,540.40/985,588.20 = 372,457.20/x
  3. Step 3: Cross multiply
    656,540.40x = 985,588.20 × 372,457.20
  4. Step 4: Simplify right side
    656,540.40x = 367,089,421,325.04
  5. Step 5: Solve for x
    x = 367,089,421,325.04/656,540.40
  6. Step 6: Final answer
    x = 559,126.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.