Finding the Fourth Proportional to 990,813.46, 1,367,330.61 and 538,107.70
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Solution
The fourth proportional to 990,813.46, 1,367,330.61 and 538,107.70 is: 742,592.99
Step by Step Solution
- Step 1: Write the proportion equation
990,813.46 : 1,367,330.61 = 538,107.70 : x - Step 2: Convert to fraction form
990,813.46/1,367,330.61 = 538,107.70/x - Step 3: Cross multiply
990,813.46x = 1,367,330.61 × 538,107.70 - Step 4: Simplify right side
990,813.46x = 735,771,129,686.70 - Step 5: Solve for x
x = 735,771,129,686.70/990,813.46 - Step 6: Final answer
x = 742,592.99
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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.