Finding the Fourth Proportional to 2,810,772.99, 3,878,865.93 and 1,521,612.45
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Solution
The fourth proportional to 2,810,772.99, 3,878,865.93 and 1,521,612.45 is: 2,099,824.75
Step by Step Solution
- Step 1: Write the proportion equation
2,810,772.99 : 3,878,865.93 = 1,521,612.45 : x - Step 2: Convert to fraction form
2,810,772.99/3,878,865.93 = 1,521,612.45/x - Step 3: Cross multiply
2,810,772.99x = 3,878,865.93 × 1,521,612.45 - Step 4: Simplify right side
2,810,772.99x = 5,902,130,690,968.83 - Step 5: Solve for x
x = 5,902,130,690,968.83/2,810,772.99 - Step 6: Final answer
x = 2,099,824.75
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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.