Finding the Fourth Proportional to 506,998.24, 699,657.58 and 280,643.74
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Solution
The fourth proportional to 506,998.24, 699,657.58 and 280,643.74 is: 387,288.37
Step by Step Solution
- Step 1: Write the proportion equation
506,998.24 : 699,657.58 = 280,643.74 : x - Step 2: Convert to fraction form
506,998.24/699,657.58 = 280,643.74/x - Step 3: Cross multiply
506,998.24x = 699,657.58 × 280,643.74 - Step 4: Simplify right side
506,998.24x = 196,354,519,970.55 - Step 5: Solve for x
x = 196,354,519,970.55/506,998.24 - Step 6: Final answer
x = 387,288.37
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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.