Finding the Fourth Proportional to 783,716.70, 1,175,575.05 and 409,854.30
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Solution
The fourth proportional to 783,716.70, 1,175,575.05 and 409,854.30 is: 614,781.45
Step by Step Solution
- Step 1: Write the proportion equation
783,716.70 : 1,175,575.05 = 409,854.30 : x - Step 2: Convert to fraction form
783,716.70/1,175,575.05 = 409,854.30/x - Step 3: Cross multiply
783,716.70x = 1,175,575.05 × 409,854.30 - Step 4: Simplify right side
783,716.70x = 481,814,489,215.22 - Step 5: Solve for x
x = 481,814,489,215.22/783,716.70 - Step 6: Final answer
x = 614,781.45
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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.