Finding the Fourth Proportional to 506,790.84, 699,377.58 and 280,457.40
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Solution
The fourth proportional to 506,790.84, 699,377.58 and 280,457.40 is: 387,034.65
Step by Step Solution
- Step 1: Write the proportion equation
506,790.84 : 699,377.58 = 280,457.40 : x - Step 2: Convert to fraction form
506,790.84/699,377.58 = 280,457.40/x - Step 3: Cross multiply
506,790.84x = 699,377.58 × 280,457.40 - Step 4: Simplify right side
506,790.84x = 196,145,617,705.09 - Step 5: Solve for x
x = 196,145,617,705.09/506,790.84 - Step 6: Final answer
x = 387,034.65
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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.