Home / 808,619.20-1,212,928.80-276,060.40

Finding the Fourth Proportional to 808,619.20, 1,212,928.80 and 276,060.40

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Solution

The fourth proportional to 808,619.20, 1,212,928.80 and 276,060.40 is: 414,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,619.20 : 1,212,928.80 = 276,060.40 : x
  2. Step 2: Convert to fraction form
    808,619.20/1,212,928.80 = 276,060.40/x
  3. Step 3: Cross multiply
    808,619.20x = 1,212,928.80 × 276,060.40
  4. Step 4: Simplify right side
    808,619.20x = 334,841,609,699.52
  5. Step 5: Solve for x
    x = 334,841,609,699.52/808,619.20
  6. Step 6: Final answer
    x = 414,090.60

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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.