Finding the Fourth Proportional to 1,127,129.63, 1,555,444.35 and 674,420.63
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Solution
The fourth proportional to 1,127,129.63, 1,555,444.35 and 674,420.63 is: 930,703.73
Step by Step Solution
- Step 1: Write the proportion equation
1,127,129.63 : 1,555,444.35 = 674,420.63 : x - Step 2: Convert to fraction form
1,127,129.63/1,555,444.35 = 674,420.63/x - Step 3: Cross multiply
1,127,129.63x = 1,555,444.35 × 674,420.63 - Step 4: Simplify right side
1,127,129.63x = 1,049,023,750,679.72 - Step 5: Solve for x
x = 1,049,023,750,679.72/1,127,129.63 - Step 6: Final answer
x = 930,703.73
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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.