Home / 571,969.40-789,412.26-317,402.60

Finding the Fourth Proportional to 571,969.40, 789,412.26 and 317,402.60

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Solution

The fourth proportional to 571,969.40, 789,412.26 and 317,402.60 is: 438,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,969.40 : 789,412.26 = 317,402.60 : x
  2. Step 2: Convert to fraction form
    571,969.40/789,412.26 = 317,402.60/x
  3. Step 3: Cross multiply
    571,969.40x = 789,412.26 × 317,402.60
  4. Step 4: Simplify right side
    571,969.40x = 250,561,503,795.88
  5. Step 5: Solve for x
    x = 250,561,503,795.88/571,969.40
  6. Step 6: Final answer
    x = 438,068.02

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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.