Home / 840,012.48-1,260,016.34-208,926.30

Finding the Fourth Proportional to 840,012.48, 1,260,016.34 and 208,926.30

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Solution

The fourth proportional to 840,012.48, 1,260,016.34 and 208,926.30 is: 313,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,012.48 : 1,260,016.34 = 208,926.30 : x
  2. Step 2: Convert to fraction form
    840,012.48/1,260,016.34 = 208,926.30/x
  3. Step 3: Cross multiply
    840,012.48x = 1,260,016.34 × 208,926.30
  4. Step 4: Simplify right side
    840,012.48x = 263,250,550,811.11
  5. Step 5: Solve for x
    x = 263,250,550,811.11/840,012.48
  6. Step 6: Final answer
    x = 313,388.86

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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.