Finding the Fourth Proportional to 987,206.76, 1,472,387.49 and 970,148.04
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Solution
The fourth proportional to 987,206.76, 1,472,387.49 and 970,148.04 is: 1,446,944.95
Step by Step Solution
- Step 1: Write the proportion equation
987,206.76 : 1,472,387.49 = 970,148.04 : x - Step 2: Convert to fraction form
987,206.76/1,472,387.49 = 970,148.04/x - Step 3: Cross multiply
987,206.76x = 1,472,387.49 × 970,148.04 - Step 4: Simplify right side
987,206.76x = 1,428,433,837,544.02 - Step 5: Solve for x
x = 1,428,433,837,544.02/987,206.76 - Step 6: Final answer
x = 1,446,944.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.