Finding the Fourth Proportional to 2,518,470.36, 3,778,818.48 and 1,320,106.14
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Solution
The fourth proportional to 2,518,470.36, 3,778,818.48 and 1,320,106.14 is: 1,980,742.58
Step by Step Solution
- Step 1: Write the proportion equation
2,518,470.36 : 3,778,818.48 = 1,320,106.14 : x - Step 2: Convert to fraction form
2,518,470.36/3,778,818.48 = 1,320,106.14/x - Step 3: Cross multiply
2,518,470.36x = 3,778,818.48 × 1,320,106.14 - Step 4: Simplify right side
2,518,470.36x = 4,988,441,477,393.47 - Step 5: Solve for x
x = 4,988,441,477,393.47/2,518,470.36 - Step 6: Final answer
x = 1,980,742.58
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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.