Finding the Fourth Proportional to 991,585.80, 1,367,884.74 and 647,623.26
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Solution
The fourth proportional to 991,585.80, 1,367,884.74 and 647,623.26 is: 893,391.15
Step by Step Solution
- Step 1: Write the proportion equation
991,585.80 : 1,367,884.74 = 647,623.26 : x - Step 2: Convert to fraction form
991,585.80/1,367,884.74 = 647,623.26/x - Step 3: Cross multiply
991,585.80x = 1,367,884.74 × 647,623.26 - Step 4: Simplify right side
991,585.80x = 885,873,974,623.05 - Step 5: Solve for x
x = 885,873,974,623.05/991,585.80 - Step 6: Final answer
x = 893,391.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.