Home / 840,035.99-1,260,051.51-208,949.78

Finding the Fourth Proportional to 840,035.99, 1,260,051.51 and 208,949.78

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Solution

The fourth proportional to 840,035.99, 1,260,051.51 and 208,949.78 is: 313,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,035.99 : 1,260,051.51 = 208,949.78 : x
  2. Step 2: Convert to fraction form
    840,035.99/1,260,051.51 = 208,949.78/x
  3. Step 3: Cross multiply
    840,035.99x = 1,260,051.51 × 208,949.78
  4. Step 4: Simplify right side
    840,035.99x = 263,287,485,803.17
  5. Step 5: Solve for x
    x = 263,287,485,803.17/840,035.99
  6. Step 6: Final answer
    x = 313,424.05

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Similar ratio
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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.