Home / 1,080,685.63-1,620,789.58-312,016.36

Finding the Fourth Proportional to 1,080,685.63, 1,620,789.58 and 312,016.36

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Solution

The fourth proportional to 1,080,685.63, 1,620,789.58 and 312,016.36 is: 467,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,685.63 : 1,620,789.58 = 312,016.36 : x
  2. Step 2: Convert to fraction form
    1,080,685.63/1,620,789.58 = 312,016.36/x
  3. Step 3: Cross multiply
    1,080,685.63x = 1,620,789.58 × 312,016.36
  4. Step 4: Simplify right side
    1,080,685.63x = 505,712,865,077.53
  5. Step 5: Solve for x
    x = 505,712,865,077.53/1,080,685.63
  6. Step 6: Final answer
    x = 467,955.57

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Double scale
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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.