Finding the Fourth Proportional to 1,277,291.80, 1,762,649.76 and 696,513.49
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Solution
The fourth proportional to 1,277,291.80, 1,762,649.76 and 696,513.49 is: 961,181.57
Step by Step Solution
- Step 1: Write the proportion equation
1,277,291.80 : 1,762,649.76 = 696,513.49 : x - Step 2: Convert to fraction form
1,277,291.80/1,762,649.76 = 696,513.49/x - Step 3: Cross multiply
1,277,291.80x = 1,762,649.76 × 696,513.49 - Step 4: Simplify right side
1,277,291.80x = 1,227,709,335,985.26 - Step 5: Solve for x
x = 1,227,709,335,985.26/1,277,291.80 - Step 6: Final answer
x = 961,181.57
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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.