Finding the Fourth Proportional to 986,531.80, 1,479,797.70 and 514,139.80
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Solution
The fourth proportional to 986,531.80, 1,479,797.70 and 514,139.80 is: 771,209.70
Step by Step Solution
- Step 1: Write the proportion equation
986,531.80 : 1,479,797.70 = 514,139.80 : x - Step 2: Convert to fraction form
986,531.80/1,479,797.70 = 514,139.80/x - Step 3: Cross multiply
986,531.80x = 1,479,797.70 × 514,139.80 - Step 4: Simplify right side
986,531.80x = 760,822,893,518.46 - Step 5: Solve for x
x = 760,822,893,518.46/986,531.80 - Step 6: Final answer
x = 771,209.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.