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Finding the Fourth Proportional to 556,629.15, 768,149.71 and 301,980.34

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Solution

The fourth proportional to 556,629.15, 768,149.71 and 301,980.34 is: 416,733.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,629.15 : 768,149.71 = 301,980.34 : x
  2. Step 2: Convert to fraction form
    556,629.15/768,149.71 = 301,980.34/x
  3. Step 3: Cross multiply
    556,629.15x = 768,149.71 × 301,980.34
  4. Step 4: Simplify right side
    556,629.15x = 231,966,106,755.95
  5. Step 5: Solve for x
    x = 231,966,106,755.95/556,629.15
  6. Step 6: Final answer
    x = 416,733.67

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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.