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Finding the Fourth Proportional to 613,224.68, 845,525.87 and 419,725.80

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Solution

The fourth proportional to 613,224.68, 845,525.87 and 419,725.80 is: 578,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,224.68 : 845,525.87 = 419,725.80 : x
  2. Step 2: Convert to fraction form
    613,224.68/845,525.87 = 419,725.80/x
  3. Step 3: Cross multiply
    613,224.68x = 845,525.87 × 419,725.80
  4. Step 4: Simplify right side
    613,224.68x = 354,889,020,107.82
  5. Step 5: Solve for x
    x = 354,889,020,107.82/613,224.68
  6. Step 6: Final answer
    x = 578,725.93

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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.