Finding the Fourth Proportional to 690,090.64, 1,036,644.99 and 491,686.00
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Solution
The fourth proportional to 690,090.64, 1,036,644.99 and 491,686.00 is: 738,604.17
Step by Step Solution
- Step 1: Write the proportion equation
690,090.64 : 1,036,644.99 = 491,686.00 : x - Step 2: Convert to fraction form
690,090.64/1,036,644.99 = 491,686.00/x - Step 3: Cross multiply
690,090.64x = 1,036,644.99 × 491,686.00 - Step 4: Simplify right side
690,090.64x = 509,703,824,117.71 - Step 5: Solve for x
x = 509,703,824,117.71/690,090.64 - Step 6: Final answer
x = 738,604.17
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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.