Home / 508,749.10-702,076.47-317,873.20

Finding the Fourth Proportional to 508,749.10, 702,076.47 and 317,873.20

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Solution

The fourth proportional to 508,749.10, 702,076.47 and 317,873.20 is: 438,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,749.10 : 702,076.47 = 317,873.20 : x
  2. Step 2: Convert to fraction form
    508,749.10/702,076.47 = 317,873.20/x
  3. Step 3: Cross multiply
    508,749.10x = 702,076.47 × 317,873.20
  4. Step 4: Simplify right side
    508,749.10x = 223,171,294,163.60
  5. Step 5: Solve for x
    x = 223,171,294,163.60/508,749.10
  6. Step 6: Final answer
    x = 438,666.71

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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.