Finding the Fourth Proportional to 620,404.17, 855,939.74 and 405,669.93
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Solution
The fourth proportional to 620,404.17, 855,939.74 and 405,669.93 is: 559,681.94
Step by Step Solution
- Step 1: Write the proportion equation
620,404.17 : 855,939.74 = 405,669.93 : x - Step 2: Convert to fraction form
620,404.17/855,939.74 = 405,669.93/x - Step 3: Cross multiply
620,404.17x = 855,939.74 × 405,669.93 - Step 4: Simplify right side
620,404.17x = 347,229,012,381.67 - Step 5: Solve for x
x = 347,229,012,381.67/620,404.17 - Step 6: Final answer
x = 559,681.94
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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.