Finding the Fourth Proportional to 4,913,221.36, 7,369,831.86 and 1,919,305.84
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Solution
The fourth proportional to 4,913,221.36, 7,369,831.86 and 1,919,305.84 is: 2,878,958.69
Step by Step Solution
- Step 1: Write the proportion equation
4,913,221.36 : 7,369,831.86 = 1,919,305.84 : x - Step 2: Convert to fraction form
4,913,221.36/7,369,831.86 = 1,919,305.84/x - Step 3: Cross multiply
4,913,221.36x = 7,369,831.86 × 1,919,305.84 - Step 4: Simplify right side
4,913,221.36x = 14,144,961,328,716.06 - Step 5: Solve for x
x = 14,144,961,328,716.06/4,913,221.36 - Step 6: Final answer
x = 2,878,958.69
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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.