Home / 548,819.80-757,406.46-307,130.20

Finding the Fourth Proportional to 548,819.80, 757,406.46 and 307,130.20

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Solution

The fourth proportional to 548,819.80, 757,406.46 and 307,130.20 is: 423,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,819.80 : 757,406.46 = 307,130.20 : x
  2. Step 2: Convert to fraction form
    548,819.80/757,406.46 = 307,130.20/x
  3. Step 3: Cross multiply
    548,819.80x = 757,406.46 × 307,130.20
  4. Step 4: Simplify right side
    548,819.80x = 232,622,397,541.09
  5. Step 5: Solve for x
    x = 232,622,397,541.09/548,819.80
  6. Step 6: Final answer
    x = 423,859.34

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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.