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Finding the Fourth Proportional to 1,788,908.40, 2,683,362.60 and 1,778,410.80

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Solution

The fourth proportional to 1,788,908.40, 2,683,362.60 and 1,778,410.80 is: 2,667,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,908.40 : 2,683,362.60 = 1,778,410.80 : x
  2. Step 2: Convert to fraction form
    1,788,908.40/2,683,362.60 = 1,778,410.80/x
  3. Step 3: Cross multiply
    1,788,908.40x = 2,683,362.60 × 1,778,410.80
  4. Step 4: Simplify right side
    1,788,908.40x = 4,772,121,028,156.08
  5. Step 5: Solve for x
    x = 4,772,121,028,156.08/1,788,908.40
  6. Step 6: Final answer
    x = 2,667,616.20

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Similar ratio
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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.