Finding the Fourth Proportional to 619,857.36, 855,344.09 and 347,862.91
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Solution
The fourth proportional to 619,857.36, 855,344.09 and 347,862.91 is: 480,017.66
Step by Step Solution
- Step 1: Write the proportion equation
619,857.36 : 855,344.09 = 347,862.91 : x - Step 2: Convert to fraction form
619,857.36/855,344.09 = 347,862.91/x - Step 3: Cross multiply
619,857.36x = 855,344.09 × 347,862.91 - Step 4: Simplify right side
619,857.36x = 297,542,480,321.03 - Step 5: Solve for x
x = 297,542,480,321.03/619,857.36 - Step 6: Final answer
x = 480,017.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.