Finding the Fourth Proportional to 690,490.75, 1,035,071.82 and 353,690.02
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Solution
The fourth proportional to 690,490.75, 1,035,071.82 and 353,690.02 is: 530,194.75
Step by Step Solution
- Step 1: Write the proportion equation
690,490.75 : 1,035,071.82 = 353,690.02 : x - Step 2: Convert to fraction form
690,490.75/1,035,071.82 = 353,690.02/x - Step 3: Cross multiply
690,490.75x = 1,035,071.82 × 353,690.02 - Step 4: Simplify right side
690,490.75x = 366,094,572,717.24 - Step 5: Solve for x
x = 366,094,572,717.24/690,490.75 - Step 6: Final answer
x = 530,194.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.