Finding the Fourth Proportional to 1,142,134.80, 1,575,556.44 and 774,487.62
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Solution
The fourth proportional to 1,142,134.80, 1,575,556.44 and 774,487.62 is: 1,068,393.12
Step by Step Solution
- Step 1: Write the proportion equation
1,142,134.80 : 1,575,556.44 = 774,487.62 : x - Step 2: Convert to fraction form
1,142,134.80/1,575,556.44 = 774,487.62/x - Step 3: Cross multiply
1,142,134.80x = 1,575,556.44 × 774,487.62 - Step 4: Simplify right side
1,142,134.80x = 1,220,248,957,391.27 - Step 5: Solve for x
x = 1,220,248,957,391.27/1,142,134.80 - Step 6: Final answer
x = 1,068,393.12
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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.