Home / 1,336,763.90-2,005,145.85-978,041.23

Finding the Fourth Proportional to 1,336,763.90, 2,005,145.85 and 978,041.23

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Solution

The fourth proportional to 1,336,763.90, 2,005,145.85 and 978,041.23 is: 1,467,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,763.90 : 2,005,145.85 = 978,041.23 : x
  2. Step 2: Convert to fraction form
    1,336,763.90/2,005,145.85 = 978,041.23/x
  3. Step 3: Cross multiply
    1,336,763.90x = 2,005,145.85 × 978,041.23
  4. Step 4: Simplify right side
    1,336,763.90x = 1,961,115,313,463.40
  5. Step 5: Solve for x
    x = 1,961,115,313,463.40/1,336,763.90
  6. Step 6: Final answer
    x = 1,467,061.85

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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.