Finding the Fourth Proportional to 817,712.64, 1,226,482.68 and 218,734.26
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Solution
The fourth proportional to 817,712.64, 1,226,482.68 and 218,734.26 is: 328,078.31
Step by Step Solution
- Step 1: Write the proportion equation
817,712.64 : 1,226,482.68 = 218,734.26 : x - Step 2: Convert to fraction form
817,712.64/1,226,482.68 = 218,734.26/x - Step 3: Cross multiply
817,712.64x = 1,226,482.68 × 218,734.26 - Step 4: Simplify right side
817,712.64x = 268,273,781,412.62 - Step 5: Solve for x
x = 268,273,781,412.62/817,712.64 - Step 6: Final answer
x = 328,078.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.