Finding the Fourth Proportional to 1,387,289.80, 2,080,934.70 and 1,304,345.80
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Solution
The fourth proportional to 1,387,289.80, 2,080,934.70 and 1,304,345.80 is: 1,956,518.70
Step by Step Solution
- Step 1: Write the proportion equation
1,387,289.80 : 2,080,934.70 = 1,304,345.80 : x - Step 2: Convert to fraction form
1,387,289.80/2,080,934.70 = 1,304,345.80/x - Step 3: Cross multiply
1,387,289.80x = 2,080,934.70 × 1,304,345.80 - Step 4: Simplify right side
1,387,289.80x = 2,714,258,436,019.26 - Step 5: Solve for x
x = 2,714,258,436,019.26/1,387,289.80 - Step 6: Final answer
x = 1,956,518.70
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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.