Home / 1,039,795.45-1,556,582.78-978,278.65

Finding the Fourth Proportional to 1,039,795.45, 1,556,582.78 and 978,278.65

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Solution

The fourth proportional to 1,039,795.45, 1,556,582.78 and 978,278.65 is: 1,464,491.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,795.45 : 1,556,582.78 = 978,278.65 : x
  2. Step 2: Convert to fraction form
    1,039,795.45/1,556,582.78 = 978,278.65/x
  3. Step 3: Cross multiply
    1,039,795.45x = 1,556,582.78 × 978,278.65
  4. Step 4: Simplify right side
    1,039,795.45x = 1,522,771,695,740.25
  5. Step 5: Solve for x
    x = 1,522,771,695,740.25/1,039,795.45
  6. Step 6: Final answer
    x = 1,464,491.59

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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.