Finding the Fourth Proportional to 2,909,612.63, 4,015,389.88 and 1,620,452.81
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Solution
The fourth proportional to 2,909,612.63, 4,015,389.88 and 1,620,452.81 is: 2,236,294.19
Step by Step Solution
- Step 1: Write the proportion equation
2,909,612.63 : 4,015,389.88 = 1,620,452.81 : x - Step 2: Convert to fraction form
2,909,612.63/4,015,389.88 = 1,620,452.81/x - Step 3: Cross multiply
2,909,612.63x = 4,015,389.88 × 1,620,452.81 - Step 4: Simplify right side
2,909,612.63x = 6,506,749,826,355.60 - Step 5: Solve for x
x = 6,506,749,826,355.60/2,909,612.63 - Step 6: Final answer
x = 2,236,294.19
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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.