Home / 354,329.20-489,441.05-262,634.37

Finding the Fourth Proportional to 354,329.20, 489,441.05 and 262,634.37

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Solution

The fourth proportional to 354,329.20, 489,441.05 and 262,634.37 is: 362,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,329.20 : 489,441.05 = 262,634.37 : x
  2. Step 2: Convert to fraction form
    354,329.20/489,441.05 = 262,634.37/x
  3. Step 3: Cross multiply
    354,329.20x = 489,441.05 × 262,634.37
  4. Step 4: Simplify right side
    354,329.20x = 128,544,039,655.19
  5. Step 5: Solve for x
    x = 128,544,039,655.19/354,329.20
  6. Step 6: Final answer
    x = 362,781.39

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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.