Finding the Fourth Proportional to 1,386,294.41, 2,079,639.98 and 426,831.19
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Solution
The fourth proportional to 1,386,294.41, 2,079,639.98 and 426,831.19 is: 640,307.86
Step by Step Solution
- Step 1: Write the proportion equation
1,386,294.41 : 2,079,639.98 = 426,831.19 : x - Step 2: Convert to fraction form
1,386,294.41/2,079,639.98 = 426,831.19/x - Step 3: Cross multiply
1,386,294.41x = 2,079,639.98 × 426,831.19 - Step 4: Simplify right side
1,386,294.41x = 887,655,203,302.95 - Step 5: Solve for x
x = 887,655,203,302.95/1,386,294.41 - Step 6: Final answer
x = 640,307.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.