Home / 571,875.06-789,175.26-317,220.78

Finding the Fourth Proportional to 571,875.06, 789,175.26 and 317,220.78

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Solution

The fourth proportional to 571,875.06, 789,175.26 and 317,220.78 is: 437,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,875.06 : 789,175.26 = 317,220.78 : x
  2. Step 2: Convert to fraction form
    571,875.06/789,175.26 = 317,220.78/x
  3. Step 3: Cross multiply
    571,875.06x = 789,175.26 × 317,220.78
  4. Step 4: Simplify right side
    571,875.06x = 250,342,791,533.90
  5. Step 5: Solve for x
    x = 250,342,791,533.90/571,875.06
  6. Step 6: Final answer
    x = 437,757.84

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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.