Finding the Fourth Proportional to 559,251.63, 771,503.40 and 378,026.82
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Solution
The fourth proportional to 559,251.63, 771,503.40 and 378,026.82 is: 521,498.66
Step by Step Solution
- Step 1: Write the proportion equation
559,251.63 : 771,503.40 = 378,026.82 : x - Step 2: Convert to fraction form
559,251.63/771,503.40 = 378,026.82/x - Step 3: Cross multiply
559,251.63x = 771,503.40 × 378,026.82 - Step 4: Simplify right side
559,251.63x = 291,648,976,921.19 - Step 5: Solve for x
x = 291,648,976,921.19/559,251.63 - Step 6: Final answer
x = 521,498.66
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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.