Finding the Fourth Proportional to 991,214.24, 1,367,872.08 and 538,501.28
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Solution
The fourth proportional to 991,214.24, 1,367,872.08 and 538,501.28 is: 743,129.83
Step by Step Solution
- Step 1: Write the proportion equation
991,214.24 : 1,367,872.08 = 538,501.28 : x - Step 2: Convert to fraction form
991,214.24/1,367,872.08 = 538,501.28/x - Step 3: Cross multiply
991,214.24x = 1,367,872.08 × 538,501.28 - Step 4: Simplify right side
991,214.24x = 736,600,865,956.26 - Step 5: Solve for x
x = 736,600,865,956.26/991,214.24 - Step 6: Final answer
x = 743,129.83
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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.