Finding the Fourth Proportional to 825,582.79, 1,139,428.79 and 503,479.74
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Solution
The fourth proportional to 825,582.79, 1,139,428.79 and 503,479.74 is: 694,877.99
Step by Step Solution
- Step 1: Write the proportion equation
825,582.79 : 1,139,428.79 = 503,479.74 : x - Step 2: Convert to fraction form
825,582.79/1,139,428.79 = 503,479.74/x - Step 3: Cross multiply
825,582.79x = 1,139,428.79 × 503,479.74 - Step 4: Simplify right side
825,582.79x = 573,679,310,937.72 - Step 5: Solve for x
x = 573,679,310,937.72/825,582.79 - Step 6: Final answer
x = 694,877.99
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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.