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Finding the Fourth Proportional to 579,574.80, 869,794.20 and 298,947.60

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Solution

The fourth proportional to 579,574.80, 869,794.20 and 298,947.60 is: 448,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,574.80 : 869,794.20 = 298,947.60 : x
  2. Step 2: Convert to fraction form
    579,574.80/869,794.20 = 298,947.60/x
  3. Step 3: Cross multiply
    579,574.80x = 869,794.20 × 298,947.60
  4. Step 4: Simplify right side
    579,574.80x = 260,022,888,583.92
  5. Step 5: Solve for x
    x = 260,022,888,583.92/579,574.80
  6. Step 6: Final answer
    x = 448,644.23

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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.