Home / 430,974.45-646,240.21-231,462.63

Finding the Fourth Proportional to 430,974.45, 646,240.21 and 231,462.63

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Solution

The fourth proportional to 430,974.45, 646,240.21 and 231,462.63 is: 347,075.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,974.45 : 646,240.21 = 231,462.63 : x
  2. Step 2: Convert to fraction form
    430,974.45/646,240.21 = 231,462.63/x
  3. Step 3: Cross multiply
    430,974.45x = 646,240.21 × 231,462.63
  4. Step 4: Simplify right side
    430,974.45x = 149,580,458,039.70
  5. Step 5: Solve for x
    x = 149,580,458,039.70/430,974.45
  6. Step 6: Final answer
    x = 347,075.00

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1.5x scale

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.