Home / 1,313,521.35-1,812,618.34-770,019.12

Finding the Fourth Proportional to 1,313,521.35, 1,812,618.34 and 770,019.12

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Solution

The fourth proportional to 1,313,521.35, 1,812,618.34 and 770,019.12 is: 1,062,602.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,521.35 : 1,812,618.34 = 770,019.12 : x
  2. Step 2: Convert to fraction form
    1,313,521.35/1,812,618.34 = 770,019.12/x
  3. Step 3: Cross multiply
    1,313,521.35x = 1,812,618.34 × 770,019.12
  4. Step 4: Simplify right side
    1,313,521.35x = 1,395,750,782,235.60
  5. Step 5: Solve for x
    x = 1,395,750,782,235.60/1,313,521.35
  6. Step 6: Final answer
    x = 1,062,602.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.