Home / 913,231.70-1,260,261.26-505,350.71

Finding the Fourth Proportional to 913,231.70, 1,260,261.26 and 505,350.71

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Solution

The fourth proportional to 913,231.70, 1,260,261.26 and 505,350.71 is: 697,384.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,231.70 : 1,260,261.26 = 505,350.71 : x
  2. Step 2: Convert to fraction form
    913,231.70/1,260,261.26 = 505,350.71/x
  3. Step 3: Cross multiply
    913,231.70x = 1,260,261.26 × 505,350.71
  4. Step 4: Simplify right side
    913,231.70x = 636,873,913,698.44
  5. Step 5: Solve for x
    x = 636,873,913,698.44/913,231.70
  6. Step 6: Final answer
    x = 697,384.81

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1.5x scale

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.