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Finding the Fourth Proportional to 988,212, 1,484,301.60 and 589,630.56

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Solution

The fourth proportional to 988,212, 1,484,301.60 and 589,630.56 is: 885,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,212 : 1,484,301.60 = 589,630.56 : x
  2. Step 2: Convert to fraction form
    988,212/1,484,301.60 = 589,630.56/x
  3. Step 3: Cross multiply
    988,212x = 1,484,301.60 × 589,630.56
  4. Step 4: Simplify right side
    988,212x = 875,189,583,616.90
  5. Step 5: Solve for x
    x = 875,189,583,616.90/988,212
  6. Step 6: Final answer
    x = 885,629.38

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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.