Finding the Fourth Proportional to 639,818.28, 882,946.26 and 353,337.12
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Solution
The fourth proportional to 639,818.28, 882,946.26 and 353,337.12 is: 487,603.59
Step by Step Solution
- Step 1: Write the proportion equation
639,818.28 : 882,946.26 = 353,337.12 : x - Step 2: Convert to fraction form
639,818.28/882,946.26 = 353,337.12/x - Step 3: Cross multiply
639,818.28x = 882,946.26 × 353,337.12 - Step 4: Simplify right side
639,818.28x = 311,977,688,623.17 - Step 5: Solve for x
x = 311,977,688,623.17/639,818.28 - Step 6: Final answer
x = 487,603.59
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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.