Finding the Fourth Proportional to 2,658,841.38, 3,987,425.54 and 861,307.81
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Solution
The fourth proportional to 2,658,841.38, 3,987,425.54 and 861,307.81 is: 1,291,690.73
Step by Step Solution
- Step 1: Write the proportion equation
2,658,841.38 : 3,987,425.54 = 861,307.81 : x - Step 2: Convert to fraction form
2,658,841.38/3,987,425.54 = 861,307.81/x - Step 3: Cross multiply
2,658,841.38x = 3,987,425.54 × 861,307.81 - Step 4: Simplify right side
2,658,841.38x = 3,434,400,759,395.47 - Step 5: Solve for x
x = 3,434,400,759,395.47/2,658,841.38 - Step 6: Final answer
x = 1,291,690.73
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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.