Finding the Fourth Proportional to 614,174.14, 847,742.79 and 387,970.30
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Solution
The fourth proportional to 614,174.14, 847,742.79 and 387,970.30 is: 535,514.28
Step by Step Solution
- Step 1: Write the proportion equation
614,174.14 : 847,742.79 = 387,970.30 : x - Step 2: Convert to fraction form
614,174.14/847,742.79 = 387,970.30/x - Step 3: Cross multiply
614,174.14x = 847,742.79 × 387,970.30 - Step 4: Simplify right side
614,174.14x = 328,899,024,559.14 - Step 5: Solve for x
x = 328,899,024,559.14/614,174.14 - Step 6: Final answer
x = 535,514.28
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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.