Finding the Fourth Proportional to 986,234.84, 1,361,230.72 and 578,468.08
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Solution
The fourth proportional to 986,234.84, 1,361,230.72 and 578,468.08 is: 798,418.89
Step by Step Solution
- Step 1: Write the proportion equation
986,234.84 : 1,361,230.72 = 578,468.08 : x - Step 2: Convert to fraction form
986,234.84/1,361,230.72 = 578,468.08/x - Step 3: Cross multiply
986,234.84x = 1,361,230.72 × 578,468.08 - Step 4: Simplify right side
986,234.84x = 787,428,521,290.79 - Step 5: Solve for x
x = 787,428,521,290.79/986,234.84 - Step 6: Final answer
x = 798,418.89
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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.