Finding the Fourth Proportional to 1,534,389.21, 2,117,572.34 and 889,803.81
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Solution
The fourth proportional to 1,534,389.21, 2,117,572.34 and 889,803.81 is: 1,227,996.08
Step by Step Solution
- Step 1: Write the proportion equation
1,534,389.21 : 2,117,572.34 = 889,803.81 : x - Step 2: Convert to fraction form
1,534,389.21/2,117,572.34 = 889,803.81/x - Step 3: Cross multiply
1,534,389.21x = 2,117,572.34 × 889,803.81 - Step 4: Simplify right side
1,534,389.21x = 1,884,223,931,633.60 - Step 5: Solve for x
x = 1,884,223,931,633.60/1,534,389.21 - Step 6: Final answer
x = 1,227,996.08
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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.