Finding the Fourth Proportional to 638,567.74, 956,767.69 and 385,316.08
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Solution
The fourth proportional to 638,567.74, 956,767.69 and 385,316.08 is: 577,320.08
Step by Step Solution
- Step 1: Write the proportion equation
638,567.74 : 956,767.69 = 385,316.08 : x - Step 2: Convert to fraction form
638,567.74/956,767.69 = 385,316.08/x - Step 3: Cross multiply
638,567.74x = 956,767.69 × 385,316.08 - Step 4: Simplify right side
638,567.74x = 368,657,978,918.92 - Step 5: Solve for x
x = 368,657,978,918.92/638,567.74 - Step 6: Final answer
x = 577,320.08
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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.