Finding the Fourth Proportional to 817,763.91, 1,128,514.05 and 455,180.01
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Solution
The fourth proportional to 817,763.91, 1,128,514.05 and 455,180.01 is: 628,148.33
Step by Step Solution
- Step 1: Write the proportion equation
817,763.91 : 1,128,514.05 = 455,180.01 : x - Step 2: Convert to fraction form
817,763.91/1,128,514.05 = 455,180.01/x - Step 3: Cross multiply
817,763.91x = 1,128,514.05 × 455,180.01 - Step 4: Simplify right side
817,763.91x = 513,677,036,564.14 - Step 5: Solve for x
x = 513,677,036,564.14/817,763.91 - Step 6: Final answer
x = 628,148.33
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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.