Finding the Fourth Proportional to 472,790.75, 652,438.35 and 257,930.78
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Solution
The fourth proportional to 472,790.75, 652,438.35 and 257,930.78 is: 355,937.44
Step by Step Solution
- Step 1: Write the proportion equation
472,790.75 : 652,438.35 = 257,930.78 : x - Step 2: Convert to fraction form
472,790.75/652,438.35 = 257,930.78/x - Step 3: Cross multiply
472,790.75x = 652,438.35 × 257,930.78 - Step 4: Simplify right side
472,790.75x = 168,283,929,255.22 - Step 5: Solve for x
x = 168,283,929,255.22/472,790.75 - Step 6: Final answer
x = 355,937.44
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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.