Finding the Fourth Proportional to 1,532,963.36, 2,115,493.28 and 921,126.34
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Solution
The fourth proportional to 1,532,963.36, 2,115,493.28 and 921,126.34 is: 1,271,156.66
Step by Step Solution
- Step 1: Write the proportion equation
1,532,963.36 : 2,115,493.28 = 921,126.34 : x - Step 2: Convert to fraction form
1,532,963.36/2,115,493.28 = 921,126.34/x - Step 3: Cross multiply
1,532,963.36x = 2,115,493.28 × 921,126.34 - Step 4: Simplify right side
1,532,963.36x = 1,948,636,584,474.26 - Step 5: Solve for x
x = 1,948,636,584,474.26/1,532,963.36 - Step 6: Final answer
x = 1,271,156.66
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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.