Finding the Fourth Proportional to 868,116.18, 1,197,987.40 and 480,930.78
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Solution
The fourth proportional to 868,116.18, 1,197,987.40 and 480,930.78 is: 663,677.32
Step by Step Solution
- Step 1: Write the proportion equation
868,116.18 : 1,197,987.40 = 480,930.78 : x - Step 2: Convert to fraction form
868,116.18/1,197,987.40 = 480,930.78/x - Step 3: Cross multiply
868,116.18x = 1,197,987.40 × 480,930.78 - Step 4: Simplify right side
868,116.18x = 576,149,019,805.79 - Step 5: Solve for x
x = 576,149,019,805.79/868,116.18 - Step 6: Final answer
x = 663,677.32
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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.