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Finding the Fourth Proportional to 579,955.60, 870,192.60 and 206,246.80

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Solution

The fourth proportional to 579,955.60, 870,192.60 and 206,246.80 is: 309,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,955.60 : 870,192.60 = 206,246.80 : x
  2. Step 2: Convert to fraction form
    579,955.60/870,192.60 = 206,246.80/x
  3. Step 3: Cross multiply
    579,955.60x = 870,192.60 × 206,246.80
  4. Step 4: Simplify right side
    579,955.60x = 179,474,439,133.68
  5. Step 5: Solve for x
    x = 179,474,439,133.68/579,955.60
  6. Step 6: Final answer
    x = 309,462.38

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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.