Finding the Fourth Proportional to 2,455,032.20, 3,386,770.98 and 1,907,420.58
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Solution
The fourth proportional to 2,455,032.20, 3,386,770.98 and 1,907,420.58 is: 2,631,328.69
Step by Step Solution
- Step 1: Write the proportion equation
2,455,032.20 : 3,386,770.98 = 1,907,420.58 : x - Step 2: Convert to fraction form
2,455,032.20/3,386,770.98 = 1,907,420.58/x - Step 3: Cross multiply
2,455,032.20x = 3,386,770.98 × 1,907,420.58 - Step 4: Simplify right side
2,455,032.20x = 6,459,996,666,998.77 - Step 5: Solve for x
x = 6,459,996,666,998.77/2,455,032.20 - Step 6: Final answer
x = 2,631,328.69
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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.