Home / 459,944.20-689,945.50-144,413.56

Finding the Fourth Proportional to 459,944.20, 689,945.50 and 144,413.56

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Solution

The fourth proportional to 459,944.20, 689,945.50 and 144,413.56 is: 216,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,944.20 : 689,945.50 = 144,413.56 : x
  2. Step 2: Convert to fraction form
    459,944.20/689,945.50 = 144,413.56/x
  3. Step 3: Cross multiply
    459,944.20x = 689,945.50 × 144,413.56
  4. Step 4: Simplify right side
    459,944.20x = 99,637,485,860.98
  5. Step 5: Solve for x
    x = 99,637,485,860.98/459,944.20
  6. Step 6: Final answer
    x = 216,629.51

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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.