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Finding the Fourth Proportional to 654,331.60, 980,768.40 and 254,839.60

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Solution

The fourth proportional to 654,331.60, 980,768.40 and 254,839.60 is: 381,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,331.60 : 980,768.40 = 254,839.60 : x
  2. Step 2: Convert to fraction form
    654,331.60/980,768.40 = 254,839.60/x
  3. Step 3: Cross multiply
    654,331.60x = 980,768.40 × 254,839.60
  4. Step 4: Simplify right side
    654,331.60x = 249,938,626,748.64
  5. Step 5: Solve for x
    x = 249,938,626,748.64/654,331.60
  6. Step 6: Final answer
    x = 381,975.48

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1.5x scale

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.