Home / 780,922.48-1,170,046.86-426,185.68

Finding the Fourth Proportional to 780,922.48, 1,170,046.86 and 426,185.68

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Solution

The fourth proportional to 780,922.48, 1,170,046.86 and 426,185.68 is: 638,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,922.48 : 1,170,046.86 = 426,185.68 : x
  2. Step 2: Convert to fraction form
    780,922.48/1,170,046.86 = 426,185.68/x
  3. Step 3: Cross multiply
    780,922.48x = 1,170,046.86 × 426,185.68
  4. Step 4: Simplify right side
    780,922.48x = 498,657,216,660.97
  5. Step 5: Solve for x
    x = 498,657,216,660.97/780,922.48
  6. Step 6: Final answer
    x = 638,548.93

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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.