Finding the Fourth Proportional to 1,142,407.05, 1,576,487.27 and 626,149.70
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Solution
The fourth proportional to 1,142,407.05, 1,576,487.27 and 626,149.70 is: 864,067.70
Step by Step Solution
- Step 1: Write the proportion equation
1,142,407.05 : 1,576,487.27 = 626,149.70 : x - Step 2: Convert to fraction form
1,142,407.05/1,576,487.27 = 626,149.70/x - Step 3: Cross multiply
1,142,407.05x = 1,576,487.27 × 626,149.70 - Step 4: Simplify right side
1,142,407.05x = 987,117,031,164.32 - Step 5: Solve for x
x = 987,117,031,164.32/1,142,407.05 - Step 6: Final answer
x = 864,067.70
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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.