Finding the Fourth Proportional to 639,518.18, 882,511.95 and 353,032.12
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Solution
The fourth proportional to 639,518.18, 882,511.95 and 353,032.12 is: 487,171.55
Step by Step Solution
- Step 1: Write the proportion equation
639,518.18 : 882,511.95 = 353,032.12 : x - Step 2: Convert to fraction form
639,518.18/882,511.95 = 353,032.12/x - Step 3: Cross multiply
639,518.18x = 882,511.95 × 353,032.12 - Step 4: Simplify right side
639,518.18x = 311,555,064,633.83 - Step 5: Solve for x
x = 311,555,064,633.83/639,518.18 - Step 6: Final answer
x = 487,171.55
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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.