Home / 787,319.56-1,181,166.76-254,840.55

Finding the Fourth Proportional to 787,319.56, 1,181,166.76 and 254,840.55

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Solution

The fourth proportional to 787,319.56, 1,181,166.76 and 254,840.55 is: 382,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,319.56 : 1,181,166.76 = 254,840.55 : x
  2. Step 2: Convert to fraction form
    787,319.56/1,181,166.76 = 254,840.55/x
  3. Step 3: Cross multiply
    787,319.56x = 1,181,166.76 × 254,840.55
  4. Step 4: Simplify right side
    787,319.56x = 301,009,181,215.82
  5. Step 5: Solve for x
    x = 301,009,181,215.82/787,319.56
  6. Step 6: Final answer
    x = 382,321.48

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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.