Finding the Fourth Proportional to 3,557,402.20, 4,909,216.56 and 1,925,809.54
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Solution
The fourth proportional to 3,557,402.20, 4,909,216.56 and 1,925,809.54 is: 2,657,617.99
Step by Step Solution
- Step 1: Write the proportion equation
3,557,402.20 : 4,909,216.56 = 1,925,809.54 : x - Step 2: Convert to fraction form
3,557,402.20/4,909,216.56 = 1,925,809.54/x - Step 3: Cross multiply
3,557,402.20x = 4,909,216.56 × 1,925,809.54 - Step 4: Simplify right side
3,557,402.20x = 9,454,216,085,173.98 - Step 5: Solve for x
x = 9,454,216,085,173.98/3,557,402.20 - Step 6: Final answer
x = 2,657,617.99
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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.