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Finding the Fourth Proportional to 524,975.20, 788,254.80 and 419,480.80

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Solution

The fourth proportional to 524,975.20, 788,254.80 and 419,480.80 is: 629,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,975.20 : 788,254.80 = 419,480.80 : x
  2. Step 2: Convert to fraction form
    524,975.20/788,254.80 = 419,480.80/x
  3. Step 3: Cross multiply
    524,975.20x = 788,254.80 × 419,480.80
  4. Step 4: Simplify right side
    524,975.20x = 330,657,754,107.84
  5. Step 5: Solve for x
    x = 330,657,754,107.84/524,975.20
  6. Step 6: Final answer
    x = 629,854.05

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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.