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Finding the Fourth Proportional to 550,010.88, 759,061.44 and 308,289.60

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Solution

The fourth proportional to 550,010.88, 759,061.44 and 308,289.60 is: 425,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,010.88 : 759,061.44 = 308,289.60 : x
  2. Step 2: Convert to fraction form
    550,010.88/759,061.44 = 308,289.60/x
  3. Step 3: Cross multiply
    550,010.88x = 759,061.44 × 308,289.60
  4. Step 4: Simplify right side
    550,010.88x = 234,010,747,713.02
  5. Step 5: Solve for x
    x = 234,010,747,713.02/550,010.88
  6. Step 6: Final answer
    x = 425,465.67

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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.