Finding the Fourth Proportional to 450,539.21, 621,718.80 and 246,589.71
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Solution
The fourth proportional to 450,539.21, 621,718.80 and 246,589.71 is: 340,279.95
Step by Step Solution
- Step 1: Write the proportion equation
450,539.21 : 621,718.80 = 246,589.71 : x - Step 2: Convert to fraction form
450,539.21/621,718.80 = 246,589.71/x - Step 3: Cross multiply
450,539.21x = 621,718.80 × 246,589.71 - Step 4: Simplify right side
450,539.21x = 153,309,458,593.55 - Step 5: Solve for x
x = 153,309,458,593.55/450,539.21 - Step 6: Final answer
x = 340,279.95
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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.