Finding the Fourth Proportional to 469,753.65, 648,428.13 and 278,766.99
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Solution
The fourth proportional to 469,753.65, 648,428.13 and 278,766.99 is: 384,798.20
Step by Step Solution
- Step 1: Write the proportion equation
469,753.65 : 648,428.13 = 278,766.99 : x - Step 2: Convert to fraction form
469,753.65/648,428.13 = 278,766.99/x - Step 3: Cross multiply
469,753.65x = 648,428.13 × 278,766.99 - Step 4: Simplify right side
469,753.65x = 180,760,358,031.43 - Step 5: Solve for x
x = 180,760,358,031.43/469,753.65 - Step 6: Final answer
x = 384,798.20
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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.