Finding the Fourth Proportional to 1,207,328.20, 1,665,419.12 and 753,831.88
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Solution
The fourth proportional to 1,207,328.20, 1,665,419.12 and 753,831.88 is: 1,039,854.80
Step by Step Solution
- Step 1: Write the proportion equation
1,207,328.20 : 1,665,419.12 = 753,831.88 : x - Step 2: Convert to fraction form
1,207,328.20/1,665,419.12 = 753,831.88/x - Step 3: Cross multiply
1,207,328.20x = 1,665,419.12 × 753,831.88 - Step 4: Simplify right side
1,207,328.20x = 1,255,446,026,217.55 - Step 5: Solve for x
x = 1,255,446,026,217.55/1,207,328.20 - Step 6: Final answer
x = 1,039,854.80
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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.