Finding the Fourth Proportional to 1,138,031.18, 1,570,464.70 and 621,773.99
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Solution
The fourth proportional to 1,138,031.18, 1,570,464.70 and 621,773.99 is: 858,038.09
Step by Step Solution
- Step 1: Write the proportion equation
1,138,031.18 : 1,570,464.70 = 621,773.99 : x - Step 2: Convert to fraction form
1,138,031.18/1,570,464.70 = 621,773.99/x - Step 3: Cross multiply
1,138,031.18x = 1,570,464.70 × 621,773.99 - Step 4: Simplify right side
1,138,031.18x = 976,474,102,673.15 - Step 5: Solve for x
x = 976,474,102,673.15/1,138,031.18 - Step 6: Final answer
x = 858,038.09
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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.