Finding the Fourth Proportional to 1,387,536.88, 2,081,275.68 and 639,582.88
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Solution
The fourth proportional to 1,387,536.88, 2,081,275.68 and 639,582.88 is: 959,360.66
Step by Step Solution
- Step 1: Write the proportion equation
1,387,536.88 : 2,081,275.68 = 639,582.88 : x - Step 2: Convert to fraction form
1,387,536.88/2,081,275.68 = 639,582.88/x - Step 3: Cross multiply
1,387,536.88x = 2,081,275.68 × 639,582.88 - Step 4: Simplify right side
1,387,536.88x = 1,331,148,293,488.36 - Step 5: Solve for x
x = 1,331,148,293,488.36/1,387,536.88 - Step 6: Final answer
x = 959,360.66
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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.