Finding the Fourth Proportional to 817,610.13, 1,128,301.99 and 455,119.63
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Solution
The fourth proportional to 817,610.13, 1,128,301.99 and 455,119.63 is: 628,065.10
Step by Step Solution
- Step 1: Write the proportion equation
817,610.13 : 1,128,301.99 = 455,119.63 : x - Step 2: Convert to fraction form
817,610.13/1,128,301.99 = 455,119.63/x - Step 3: Cross multiply
817,610.13x = 1,128,301.99 × 455,119.63 - Step 4: Simplify right side
817,610.13x = 513,512,384,217.06 - Step 5: Solve for x
x = 513,512,384,217.06/817,610.13 - Step 6: Final answer
x = 628,065.10
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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.