Finding the Fourth Proportional to 514,430.97, 709,907.07 and 284,987.78
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Solution
The fourth proportional to 514,430.97, 709,907.07 and 284,987.78 is: 393,278.88
Step by Step Solution
- Step 1: Write the proportion equation
514,430.97 : 709,907.07 = 284,987.78 : x - Step 2: Convert to fraction form
514,430.97/709,907.07 = 284,987.78/x - Step 3: Cross multiply
514,430.97x = 709,907.07 × 284,987.78 - Step 4: Simplify right side
514,430.97x = 202,314,836,336.07 - Step 5: Solve for x
x = 202,314,836,336.07/514,430.97 - Step 6: Final answer
x = 393,278.88
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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.