Finding the Fourth Proportional to 1,908,690.90, 2,862,961.53 and 646,518.48
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Solution
The fourth proportional to 1,908,690.90, 2,862,961.53 and 646,518.48 is: 969,752.38
Step by Step Solution
- Step 1: Write the proportion equation
1,908,690.90 : 2,862,961.53 = 646,518.48 : x - Step 2: Convert to fraction form
1,908,690.90/2,862,961.53 = 646,518.48/x - Step 3: Cross multiply
1,908,690.90x = 2,862,961.53 × 646,518.48 - Step 4: Simplify right side
1,908,690.90x = 1,850,957,536,674.07 - Step 5: Solve for x
x = 1,850,957,536,674.07/1,908,690.90 - Step 6: Final answer
x = 969,752.38
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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.