Finding the Fourth Proportional to 714,781.44, 1,071,934.30 and 288,207.09
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Solution
The fourth proportional to 714,781.44, 1,071,934.30 and 288,207.09 is: 432,214.73
Step by Step Solution
- Step 1: Write the proportion equation
714,781.44 : 1,071,934.30 = 288,207.09 : x - Step 2: Convert to fraction form
714,781.44/1,071,934.30 = 288,207.09/x - Step 3: Cross multiply
714,781.44x = 1,071,934.30 × 288,207.09 - Step 4: Simplify right side
714,781.44x = 308,939,064,013.28 - Step 5: Solve for x
x = 308,939,064,013.28/714,781.44 - Step 6: Final answer
x = 432,214.73
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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.