Home / 913,255.92-1,260,260.64-505,350.72

Finding the Fourth Proportional to 913,255.92, 1,260,260.64 and 505,350.72

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Solution

The fourth proportional to 913,255.92, 1,260,260.64 and 505,350.72 is: 697,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,255.92 : 1,260,260.64 = 505,350.72 : x
  2. Step 2: Convert to fraction form
    913,255.92/1,260,260.64 = 505,350.72/x
  3. Step 3: Cross multiply
    913,255.92x = 1,260,260.64 × 505,350.72
  4. Step 4: Simplify right side
    913,255.92x = 636,873,621,811.66
  5. Step 5: Solve for x
    x = 636,873,621,811.66/913,255.92
  6. Step 6: Final answer
    x = 697,365.99

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Double scale
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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.