Finding the Fourth Proportional to 817,996.09, 1,128,832.00 and 455,410.52
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Solution
The fourth proportional to 817,996.09, 1,128,832.00 and 455,410.52 is: 628,465.07
Step by Step Solution
- Step 1: Write the proportion equation
817,996.09 : 1,128,832.00 = 455,410.52 : x - Step 2: Convert to fraction form
817,996.09/1,128,832.00 = 455,410.52/x - Step 3: Cross multiply
817,996.09x = 1,128,832.00 × 455,410.52 - Step 4: Simplify right side
817,996.09x = 514,081,965,835.59 - Step 5: Solve for x
x = 514,081,965,835.59/817,996.09 - Step 6: Final answer
x = 628,465.07
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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.