Finding the Fourth Proportional to 1,174,242.40, 1,620,454.74 and 715,356.95
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Solution
The fourth proportional to 1,174,242.40, 1,620,454.74 and 715,356.95 is: 987,192.73
Step by Step Solution
- Step 1: Write the proportion equation
1,174,242.40 : 1,620,454.74 = 715,356.95 : x - Step 2: Convert to fraction form
1,174,242.40/1,620,454.74 = 715,356.95/x - Step 3: Cross multiply
1,174,242.40x = 1,620,454.74 × 715,356.95 - Step 4: Simplify right side
1,174,242.40x = 1,159,203,560,419.44 - Step 5: Solve for x
x = 1,159,203,560,419.44/1,174,242.40 - Step 6: Final answer
x = 987,192.73
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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.