Home / 1,483,618.70-2,225,428.05-978,421.70

Finding the Fourth Proportional to 1,483,618.70, 2,225,428.05 and 978,421.70

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Solution

The fourth proportional to 1,483,618.70, 2,225,428.05 and 978,421.70 is: 1,467,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483,618.70 : 2,225,428.05 = 978,421.70 : x
  2. Step 2: Convert to fraction form
    1,483,618.70/2,225,428.05 = 978,421.70/x
  3. Step 3: Cross multiply
    1,483,618.70x = 2,225,428.05 × 978,421.70
  4. Step 4: Simplify right side
    1,483,618.70x = 2,177,407,095,908.68
  5. Step 5: Solve for x
    x = 2,177,407,095,908.68/1,483,618.70
  6. Step 6: Final answer
    x = 1,467,632.55

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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.