Finding the Fourth Proportional to 638,364.99, 881,023.50 and 366,518.10
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Solution
The fourth proportional to 638,364.99, 881,023.50 and 366,518.10 is: 505,840.80
Step by Step Solution
- Step 1: Write the proportion equation
638,364.99 : 881,023.50 = 366,518.10 : x - Step 2: Convert to fraction form
638,364.99/881,023.50 = 366,518.10/x - Step 3: Cross multiply
638,364.99x = 881,023.50 × 366,518.10 - Step 4: Simplify right side
638,364.99x = 322,911,059,275.35 - Step 5: Solve for x
x = 322,911,059,275.35/638,364.99 - Step 6: Final answer
x = 505,840.80
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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.