Home / 499,319.88-689,061.44-272,965.38

Finding the Fourth Proportional to 499,319.88, 689,061.44 and 272,965.38

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Solution

The fourth proportional to 499,319.88, 689,061.44 and 272,965.38 is: 376,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,319.88 : 689,061.44 = 272,965.38 : x
  2. Step 2: Convert to fraction form
    499,319.88/689,061.44 = 272,965.38/x
  3. Step 3: Cross multiply
    499,319.88x = 689,061.44 × 272,965.38
  4. Step 4: Simplify right side
    499,319.88x = 188,089,917,812.95
  5. Step 5: Solve for x
    x = 188,089,917,812.95/499,319.88
  6. Step 6: Final answer
    x = 376,692.23

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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.