Home / 827,148.69-1,238,979.34-378,247.35

Finding the Fourth Proportional to 827,148.69, 1,238,979.34 and 378,247.35

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Solution

The fourth proportional to 827,148.69, 1,238,979.34 and 378,247.35 is: 566,573.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,148.69 : 1,238,979.34 = 378,247.35 : x
  2. Step 2: Convert to fraction form
    827,148.69/1,238,979.34 = 378,247.35/x
  3. Step 3: Cross multiply
    827,148.69x = 1,238,979.34 × 378,247.35
  4. Step 4: Simplify right side
    827,148.69x = 468,640,652,059.75
  5. Step 5: Solve for x
    x = 468,640,652,059.75/827,148.69
  6. Step 6: Final answer
    x = 566,573.65

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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.