Home / 1,221,157.76-1,831,529.28-322,609.28

Finding the Fourth Proportional to 1,221,157.76, 1,831,529.28 and 322,609.28

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Solution

The fourth proportional to 1,221,157.76, 1,831,529.28 and 322,609.28 is: 483,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,157.76 : 1,831,529.28 = 322,609.28 : x
  2. Step 2: Convert to fraction form
    1,221,157.76/1,831,529.28 = 322,609.28/x
  3. Step 3: Cross multiply
    1,221,157.76x = 1,831,529.28 × 322,609.28
  4. Step 4: Simplify right side
    1,221,157.76x = 590,868,342,319.72
  5. Step 5: Solve for x
    x = 590,868,342,319.72/1,221,157.76
  6. Step 6: Final answer
    x = 483,859.14

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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.