Home / 682,840.09-942,319.37-376,916.56

Finding the Fourth Proportional to 682,840.09, 942,319.37 and 376,916.56

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Solution

The fourth proportional to 682,840.09, 942,319.37 and 376,916.56 is: 520,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,840.09 : 942,319.37 = 376,916.56 : x
  2. Step 2: Convert to fraction form
    682,840.09/942,319.37 = 376,916.56/x
  3. Step 3: Cross multiply
    682,840.09x = 942,319.37 × 376,916.56
  4. Step 4: Simplify right side
    682,840.09x = 355,175,773,948.26
  5. Step 5: Solve for x
    x = 355,175,773,948.26/682,840.09
  6. Step 6: Final answer
    x = 520,144.88

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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.