Finding the Fourth Proportional to 1,122,341.79, 1,548,373.14 and 828,695.26
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Solution
The fourth proportional to 1,122,341.79, 1,548,373.14 and 828,695.26 is: 1,143,260.90
Step by Step Solution
- Step 1: Write the proportion equation
1,122,341.79 : 1,548,373.14 = 828,695.26 : x - Step 2: Convert to fraction form
1,122,341.79/1,548,373.14 = 828,695.26/x - Step 3: Cross multiply
1,122,341.79x = 1,548,373.14 × 828,695.26 - Step 4: Simplify right side
1,122,341.79x = 1,283,129,481,829.32 - Step 5: Solve for x
x = 1,283,129,481,829.32/1,122,341.79 - Step 6: Final answer
x = 1,143,260.90
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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.