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Finding the Fourth Proportional to 550,034.88, 759,094.56 and 308,313.60

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Solution

The fourth proportional to 550,034.88, 759,094.56 and 308,313.60 is: 425,498.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,034.88 : 759,094.56 = 308,313.60 : x
  2. Step 2: Convert to fraction form
    550,034.88/759,094.56 = 308,313.60/x
  3. Step 3: Cross multiply
    550,034.88x = 759,094.56 × 308,313.60
  4. Step 4: Simplify right side
    550,034.88x = 234,039,176,534.02
  5. Step 5: Solve for x
    x = 234,039,176,534.02/550,034.88
  6. Step 6: Final answer
    x = 425,498.79

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1.5x scale

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.