Finding the Fourth Proportional to 988,293.06, 1,363,990.68 and 625,750.56
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Solution
The fourth proportional to 988,293.06, 1,363,990.68 and 625,750.56 is: 863,628.38
Step by Step Solution
- Step 1: Write the proportion equation
988,293.06 : 1,363,990.68 = 625,750.56 : x - Step 2: Convert to fraction form
988,293.06/1,363,990.68 = 625,750.56/x - Step 3: Cross multiply
988,293.06x = 1,363,990.68 × 625,750.56 - Step 4: Simplify right side
988,293.06x = 853,517,931,844.78 - Step 5: Solve for x
x = 853,517,931,844.78/988,293.06 - Step 6: Final answer
x = 863,628.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.