Home / 776,330.33-1,163,052.07-421,642.67

Finding the Fourth Proportional to 776,330.33, 1,163,052.07 and 421,642.67

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Solution

The fourth proportional to 776,330.33, 1,163,052.07 and 421,642.67 is: 631,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,330.33 : 1,163,052.07 = 421,642.67 : x
  2. Step 2: Convert to fraction form
    776,330.33/1,163,052.07 = 421,642.67/x
  3. Step 3: Cross multiply
    776,330.33x = 1,163,052.07 × 421,642.67
  4. Step 4: Simplify right side
    776,330.33x = 490,392,373,274.46
  5. Step 5: Solve for x
    x = 490,392,373,274.46/776,330.33
  6. Step 6: Final answer
    x = 631,680.04

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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.