Home / 505,949.76-698,284.80-304,741.44

Finding the Fourth Proportional to 505,949.76, 698,284.80 and 304,741.44

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Solution

The fourth proportional to 505,949.76, 698,284.80 and 304,741.44 is: 420,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,949.76 : 698,284.80 = 304,741.44 : x
  2. Step 2: Convert to fraction form
    505,949.76/698,284.80 = 304,741.44/x
  3. Step 3: Cross multiply
    505,949.76x = 698,284.80 × 304,741.44
  4. Step 4: Simplify right side
    505,949.76x = 212,796,315,482.11
  5. Step 5: Solve for x
    x = 212,796,315,482.11/505,949.76
  6. Step 6: Final answer
    x = 420,587.84

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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.