Finding the Fourth Proportional to 578,935.20, 798,636.64 and 395,035.84
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Solution
The fourth proportional to 578,935.20, 798,636.64 and 395,035.84 is: 544,948.89
Step by Step Solution
- Step 1: Write the proportion equation
578,935.20 : 798,636.64 = 395,035.84 : x - Step 2: Convert to fraction form
578,935.20/798,636.64 = 395,035.84/x - Step 3: Cross multiply
578,935.20x = 798,636.64 × 395,035.84 - Step 4: Simplify right side
578,935.20x = 315,490,095,937.18 - Step 5: Solve for x
x = 315,490,095,937.18/578,935.20 - Step 6: Final answer
x = 544,948.89
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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.