Finding the Fourth Proportional to 750,315.19, 1,125,122.47 and 270,479.80
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Solution
The fourth proportional to 750,315.19, 1,125,122.47 and 270,479.80 is: 405,593.42
Step by Step Solution
- Step 1: Write the proportion equation
750,315.19 : 1,125,122.47 = 270,479.80 : x - Step 2: Convert to fraction form
750,315.19/1,125,122.47 = 270,479.80/x - Step 3: Cross multiply
750,315.19x = 1,125,122.47 × 270,479.80 - Step 4: Simplify right side
750,315.19x = 304,322,900,661.11 - Step 5: Solve for x
x = 304,322,900,661.11/750,315.19 - Step 6: Final answer
x = 405,593.42
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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.