Finding the Fourth Proportional to 499,209.30, 688,908.69 and 272,854.80
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Solution
The fourth proportional to 499,209.30, 688,908.69 and 272,854.80 is: 376,539.55
Step by Step Solution
- Step 1: Write the proportion equation
499,209.30 : 688,908.69 = 272,854.80 : x - Step 2: Convert to fraction form
499,209.30/688,908.69 = 272,854.80/x - Step 3: Cross multiply
499,209.30x = 688,908.69 × 272,854.80 - Step 4: Simplify right side
499,209.30x = 187,972,042,828.21 - Step 5: Solve for x
x = 187,972,042,828.21/499,209.30 - Step 6: Final answer
x = 376,539.55
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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.