Finding the Fourth Proportional to 817,673.07, 1,128,377.54 and 455,097.06
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Solution
The fourth proportional to 817,673.07, 1,128,377.54 and 455,097.06 is: 628,027.66
Step by Step Solution
- Step 1: Write the proportion equation
817,673.07 : 1,128,377.54 = 455,097.06 : x - Step 2: Convert to fraction form
817,673.07/1,128,377.54 = 455,097.06/x - Step 3: Cross multiply
817,673.07x = 1,128,377.54 × 455,097.06 - Step 4: Simplify right side
817,673.07x = 513,521,302,161.78 - Step 5: Solve for x
x = 513,521,302,161.78/817,673.07 - Step 6: Final answer
x = 628,027.66
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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.