Home / 1,039,815.70-1,556,613.15-978,298.90

Finding the Fourth Proportional to 1,039,815.70, 1,556,613.15 and 978,298.90

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Solution

The fourth proportional to 1,039,815.70, 1,556,613.15 and 978,298.90 is: 1,464,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,815.70 : 1,556,613.15 = 978,298.90 : x
  2. Step 2: Convert to fraction form
    1,039,815.70/1,556,613.15 = 978,298.90/x
  3. Step 3: Cross multiply
    1,039,815.70x = 1,556,613.15 × 978,298.90
  4. Step 4: Simplify right side
    1,039,815.70x = 1,522,832,932,370.54
  5. Step 5: Solve for x
    x = 1,522,832,932,370.54/1,039,815.70
  6. Step 6: Final answer
    x = 1,464,521.97

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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.