Finding the Fourth Proportional to 578,367.84, 798,139.80 and 323,718.96
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Solution
The fourth proportional to 578,367.84, 798,139.80 and 323,718.96 is: 446,727.79
Step by Step Solution
- Step 1: Write the proportion equation
578,367.84 : 798,139.80 = 323,718.96 : x - Step 2: Convert to fraction form
578,367.84/798,139.80 = 323,718.96/x - Step 3: Cross multiply
578,367.84x = 798,139.80 × 323,718.96 - Step 4: Simplify right side
578,367.84x = 258,372,985,990.61 - Step 5: Solve for x
x = 258,372,985,990.61/578,367.84 - Step 6: Final answer
x = 446,727.79
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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.