Finding the Fourth Proportional to 817,827.98, 1,128,708.54 and 469,104.44
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Solution
The fourth proportional to 817,827.98, 1,128,708.54 and 469,104.44 is: 647,424.88
Step by Step Solution
- Step 1: Write the proportion equation
817,827.98 : 1,128,708.54 = 469,104.44 : x - Step 2: Convert to fraction form
817,827.98/1,128,708.54 = 469,104.44/x - Step 3: Cross multiply
817,827.98x = 1,128,708.54 × 469,104.44 - Step 4: Simplify right side
817,827.98x = 529,482,181,936.38 - Step 5: Solve for x
x = 529,482,181,936.38/817,827.98 - Step 6: Final answer
x = 647,424.88
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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.