Finding the Fourth Proportional to 620,264.99, 856,290.79 and 417,382.67
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Solution
The fourth proportional to 620,264.99, 856,290.79 and 417,382.67 is: 576,206.85
Step by Step Solution
- Step 1: Write the proportion equation
620,264.99 : 856,290.79 = 417,382.67 : x - Step 2: Convert to fraction form
620,264.99/856,290.79 = 417,382.67/x - Step 3: Cross multiply
620,264.99x = 856,290.79 × 417,382.67 - Step 4: Simplify right side
620,264.99x = 357,400,938,889.07 - Step 5: Solve for x
x = 357,400,938,889.07/620,264.99 - Step 6: Final answer
x = 576,206.85
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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.