Finding the Fourth Proportional to 672,455.54, 928,044.25 and 386,030.99
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Solution
The fourth proportional to 672,455.54, 928,044.25 and 386,030.99 is: 532,754.69
Step by Step Solution
- Step 1: Write the proportion equation
672,455.54 : 928,044.25 = 386,030.99 : x - Step 2: Convert to fraction form
672,455.54/928,044.25 = 386,030.99/x - Step 3: Cross multiply
672,455.54x = 928,044.25 × 386,030.99 - Step 4: Simplify right side
672,455.54x = 358,253,841,946.34 - Step 5: Solve for x
x = 358,253,841,946.34/672,455.54 - Step 6: Final answer
x = 532,754.69
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1.5x scale
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.