Home / 761,508.92-1,050,879.48-421,976.90

Finding the Fourth Proportional to 761,508.92, 1,050,879.48 and 421,976.90

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Solution

The fourth proportional to 761,508.92, 1,050,879.48 and 421,976.90 is: 582,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,508.92 : 1,050,879.48 = 421,976.90 : x
  2. Step 2: Convert to fraction form
    761,508.92/1,050,879.48 = 421,976.90/x
  3. Step 3: Cross multiply
    761,508.92x = 1,050,879.48 × 421,976.90
  4. Step 4: Simplify right side
    761,508.92x = 443,446,865,244.01
  5. Step 5: Solve for x
    x = 443,446,865,244.01/761,508.92
  6. Step 6: Final answer
    x = 582,326.55

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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.