Finding the Fourth Proportional to 991,296.48, 1,367,944.56 and 561,567.84
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Solution
The fourth proportional to 991,296.48, 1,367,944.56 and 561,567.84 is: 774,938.36
Step by Step Solution
- Step 1: Write the proportion equation
991,296.48 : 1,367,944.56 = 561,567.84 : x - Step 2: Convert to fraction form
991,296.48/1,367,944.56 = 561,567.84/x - Step 3: Cross multiply
991,296.48x = 1,367,944.56 × 561,567.84 - Step 4: Simplify right side
991,296.48x = 768,193,671,798.95 - Step 5: Solve for x
x = 768,193,671,798.95/991,296.48 - Step 6: Final answer
x = 774,938.36
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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.