Home / 770,848.32-1,155,874-338,388.80

Finding the Fourth Proportional to 770,848.32, 1,155,874 and 338,388.80

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Solution

The fourth proportional to 770,848.32, 1,155,874 and 338,388.80 is: 507,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,848.32 : 1,155,874 = 338,388.80 : x
  2. Step 2: Convert to fraction form
    770,848.32/1,155,874 = 338,388.80/x
  3. Step 3: Cross multiply
    770,848.32x = 1,155,874 × 338,388.80
  4. Step 4: Simplify right side
    770,848.32x = 391,134,815,811.20
  5. Step 5: Solve for x
    x = 391,134,815,811.20/770,848.32
  6. Step 6: Final answer
    x = 507,408.27

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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.