Finding the Fourth Proportional to 1,536,324.17, 2,121,126.03 and 1,374,901.70
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Solution
The fourth proportional to 1,536,324.17, 2,121,126.03 and 1,374,901.70 is: 1,898,258.09
Step by Step Solution
- Step 1: Write the proportion equation
1,536,324.17 : 2,121,126.03 = 1,374,901.70 : x - Step 2: Convert to fraction form
1,536,324.17/2,121,126.03 = 1,374,901.70/x - Step 3: Cross multiply
1,536,324.17x = 2,121,126.03 × 1,374,901.70 - Step 4: Simplify right side
1,536,324.17x = 2,916,339,777,686.74 - Step 5: Solve for x
x = 2,916,339,777,686.74/1,536,324.17 - Step 6: Final answer
x = 1,898,258.09
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1.5x scale
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.