Finding the Fourth Proportional to 692,279.17, 955,393.19 and 386,415.07
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Solution
The fourth proportional to 692,279.17, 955,393.19 and 386,415.07 is: 533,279.55
Step by Step Solution
- Step 1: Write the proportion equation
692,279.17 : 955,393.19 = 386,415.07 : x - Step 2: Convert to fraction form
692,279.17/955,393.19 = 386,415.07/x - Step 3: Cross multiply
692,279.17x = 955,393.19 × 386,415.07 - Step 4: Simplify right side
692,279.17x = 369,178,324,231.09 - Step 5: Solve for x
x = 369,178,324,231.09/692,279.17 - Step 6: Final answer
x = 533,279.55
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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.