Finding the Fourth Proportional to 1,370,831.68, 1,891,728.16 and 758,925.76
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Solution
The fourth proportional to 1,370,831.68, 1,891,728.16 and 758,925.76 is: 1,047,306.72
Step by Step Solution
- Step 1: Write the proportion equation
1,370,831.68 : 1,891,728.16 = 758,925.76 : x - Step 2: Convert to fraction form
1,370,831.68/1,891,728.16 = 758,925.76/x - Step 3: Cross multiply
1,370,831.68x = 1,891,728.16 × 758,925.76 - Step 4: Simplify right side
1,370,831.68x = 1,435,681,231,541.40 - Step 5: Solve for x
x = 1,435,681,231,541.40/1,370,831.68 - Step 6: Final answer
x = 1,047,306.72
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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.