Finding the Fourth Proportional to 692,217.68, 955,079.88 and 405,583.76
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Solution
The fourth proportional to 692,217.68, 955,079.88 and 405,583.76 is: 559,599.82
Step by Step Solution
- Step 1: Write the proportion equation
692,217.68 : 955,079.88 = 405,583.76 : x - Step 2: Convert to fraction form
692,217.68/955,079.88 = 405,583.76/x - Step 3: Cross multiply
692,217.68x = 955,079.88 × 405,583.76 - Step 4: Simplify right side
692,217.68x = 387,364,888,830.75 - Step 5: Solve for x
x = 387,364,888,830.75/692,217.68 - Step 6: Final answer
x = 559,599.82
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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.