Finding the Fourth Proportional to 530,262.76, 731,776.10 and 288,558.44
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Solution
The fourth proportional to 530,262.76, 731,776.10 and 288,558.44 is: 398,217.99
Step by Step Solution
- Step 1: Write the proportion equation
530,262.76 : 731,776.10 = 288,558.44 : x - Step 2: Convert to fraction form
530,262.76/731,776.10 = 288,558.44/x - Step 3: Cross multiply
530,262.76x = 731,776.10 × 288,558.44 - Step 4: Simplify right side
530,262.76x = 211,160,169,845.28 - Step 5: Solve for x
x = 211,160,169,845.28/530,262.76 - Step 6: Final answer
x = 398,217.99
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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.