Finding the Fourth Proportional to 1,272,671.18, 1,756,241.36 and 699,706.95
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Solution
The fourth proportional to 1,272,671.18, 1,756,241.36 and 699,706.95 is: 965,570.91
Step by Step Solution
- Step 1: Write the proportion equation
1,272,671.18 : 1,756,241.36 = 699,706.95 : x - Step 2: Convert to fraction form
1,272,671.18/1,756,241.36 = 699,706.95/x - Step 3: Cross multiply
1,272,671.18x = 1,756,241.36 × 699,706.95 - Step 4: Simplify right side
1,272,671.18x = 1,228,854,273,189.71 - Step 5: Solve for x
x = 1,228,854,273,189.71/1,272,671.18 - Step 6: Final answer
x = 965,570.91
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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.