Finding the Fourth Proportional to 1,222,979.40, 1,687,655.25 and 679,149.99
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Solution
The fourth proportional to 1,222,979.40, 1,687,655.25 and 679,149.99 is: 937,195.71
Step by Step Solution
- Step 1: Write the proportion equation
1,222,979.40 : 1,687,655.25 = 679,149.99 : x - Step 2: Convert to fraction form
1,222,979.40/1,687,655.25 = 679,149.99/x - Step 3: Cross multiply
1,222,979.40x = 1,687,655.25 × 679,149.99 - Step 4: Simplify right side
1,222,979.40x = 1,146,171,046,160.95 - Step 5: Solve for x
x = 1,146,171,046,160.95/1,222,979.40 - Step 6: Final answer
x = 937,195.71
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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.