Finding the Fourth Proportional to 688,405.87, 950,136.09 and 439,888.96
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Solution
The fourth proportional to 688,405.87, 950,136.09 and 439,888.96 is: 607,133.66
Step by Step Solution
- Step 1: Write the proportion equation
688,405.87 : 950,136.09 = 439,888.96 : x - Step 2: Convert to fraction form
688,405.87/950,136.09 = 439,888.96/x - Step 3: Cross multiply
688,405.87x = 950,136.09 × 439,888.96 - Step 4: Simplify right side
688,405.87x = 417,954,371,737.89 - Step 5: Solve for x
x = 417,954,371,737.89/688,405.87 - Step 6: Final answer
x = 607,133.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.