Finding the Fourth Proportional to 658,424.55, 908,699.62 and 371,963.09
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Solution
The fourth proportional to 658,424.55, 908,699.62 and 371,963.09 is: 513,350.72
Step by Step Solution
- Step 1: Write the proportion equation
658,424.55 : 908,699.62 = 371,963.09 : x - Step 2: Convert to fraction form
658,424.55/908,699.62 = 371,963.09/x - Step 3: Cross multiply
658,424.55x = 908,699.62 × 371,963.09 - Step 4: Simplify right side
658,424.55x = 338,002,719,878.87 - Step 5: Solve for x
x = 338,002,719,878.87/658,424.55 - Step 6: Final answer
x = 513,350.72
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1.5x scale
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.