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Finding the Fourth Proportional to 556,628.97, 768,157.32 and 301,980.15

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Solution

The fourth proportional to 556,628.97, 768,157.32 and 301,980.15 is: 416,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,628.97 : 768,157.32 = 301,980.15 : x
  2. Step 2: Convert to fraction form
    556,628.97/768,157.32 = 301,980.15/x
  3. Step 3: Cross multiply
    556,628.97x = 768,157.32 × 301,980.15
  4. Step 4: Simplify right side
    556,628.97x = 231,968,262,717.20
  5. Step 5: Solve for x
    x = 231,968,262,717.20/556,628.97
  6. Step 6: Final answer
    x = 416,737.67

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1.5x scale

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.