Home / 912,921.96-1,259,809.56-505,046.52

Finding the Fourth Proportional to 912,921.96, 1,259,809.56 and 505,046.52

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Solution

The fourth proportional to 912,921.96, 1,259,809.56 and 505,046.52 is: 696,951.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,921.96 : 1,259,809.56 = 505,046.52 : x
  2. Step 2: Convert to fraction form
    912,921.96/1,259,809.56 = 505,046.52/x
  3. Step 3: Cross multiply
    912,921.96x = 1,259,809.56 × 505,046.52
  4. Step 4: Simplify right side
    912,921.96x = 636,262,434,140.73
  5. Step 5: Solve for x
    x = 636,262,434,140.73/912,921.96
  6. Step 6: Final answer
    x = 696,951.61

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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.