Finding the Fourth Proportional to 658,257.40, 987,386.10 and 606,935.80
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Solution
The fourth proportional to 658,257.40, 987,386.10 and 606,935.80 is: 910,403.70
Step by Step Solution
- Step 1: Write the proportion equation
658,257.40 : 987,386.10 = 606,935.80 : x - Step 2: Convert to fraction form
658,257.40/987,386.10 = 606,935.80/x - Step 3: Cross multiply
658,257.40x = 987,386.10 × 606,935.80 - Step 4: Simplify right side
658,257.40x = 599,279,972,512.38 - Step 5: Solve for x
x = 599,279,972,512.38/658,257.40 - Step 6: Final answer
x = 910,403.70
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1.5x scale
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.