Finding the Fourth Proportional to 660,067.71, 910,869.08 and 358,255.23
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Solution
The fourth proportional to 660,067.71, 910,869.08 and 358,255.23 is: 494,378.99
Step by Step Solution
- Step 1: Write the proportion equation
660,067.71 : 910,869.08 = 358,255.23 : x - Step 2: Convert to fraction form
660,067.71/910,869.08 = 358,255.23/x - Step 3: Cross multiply
660,067.71x = 910,869.08 × 358,255.23 - Step 4: Simplify right side
660,067.71x = 326,323,609,964.01 - Step 5: Solve for x
x = 326,323,609,964.01/660,067.71 - Step 6: Final answer
x = 494,378.99
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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.