Home / 878,219.52-1,211,942.70-475,811.52

Finding the Fourth Proportional to 878,219.52, 1,211,942.70 and 475,811.52

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Solution

The fourth proportional to 878,219.52, 1,211,942.70 and 475,811.52 is: 656,619.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,219.52 : 1,211,942.70 = 475,811.52 : x
  2. Step 2: Convert to fraction form
    878,219.52/1,211,942.70 = 475,811.52/x
  3. Step 3: Cross multiply
    878,219.52x = 1,211,942.70 × 475,811.52
  4. Step 4: Simplify right side
    878,219.52x = 576,656,298,239.90
  5. Step 5: Solve for x
    x = 576,656,298,239.90/878,219.52
  6. Step 6: Final answer
    x = 656,619.77

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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.