Home / 761,411.48-1,050,747.86-421,879.73

Finding the Fourth Proportional to 761,411.48, 1,050,747.86 and 421,879.73

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Solution

The fourth proportional to 761,411.48, 1,050,747.86 and 421,879.73 is: 582,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,411.48 : 1,050,747.86 = 421,879.73 : x
  2. Step 2: Convert to fraction form
    761,411.48/1,050,747.86 = 421,879.73/x
  3. Step 3: Cross multiply
    761,411.48x = 1,050,747.86 × 421,879.73
  4. Step 4: Simplify right side
    761,411.48x = 443,289,223,992.35
  5. Step 5: Solve for x
    x = 443,289,223,992.35/761,411.48
  6. Step 6: Final answer
    x = 582,194.04

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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.