Finding the Fourth Proportional to 390,576.42, 585,860.37 and 296,385.08
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Solution
The fourth proportional to 390,576.42, 585,860.37 and 296,385.08 is: 444,574.38
Step by Step Solution
- Step 1: Write the proportion equation
390,576.42 : 585,860.37 = 296,385.08 : x - Step 2: Convert to fraction form
390,576.42/585,860.37 = 296,385.08/x - Step 3: Cross multiply
390,576.42x = 585,860.37 × 296,385.08 - Step 4: Simplify right side
390,576.42x = 173,640,269,701.98 - Step 5: Solve for x
x = 173,640,269,701.98/390,576.42 - Step 6: Final answer
x = 444,574.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.