Finding the Fourth Proportional to 499,221.13, 688,925.52 and 272,866.63
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Solution
The fourth proportional to 499,221.13, 688,925.52 and 272,866.63 is: 376,556.15
Step by Step Solution
- Step 1: Write the proportion equation
499,221.13 : 688,925.52 = 272,866.63 : x - Step 2: Convert to fraction form
499,221.13/688,925.52 = 272,866.63/x - Step 3: Cross multiply
499,221.13x = 688,925.52 × 272,866.63 - Step 4: Simplify right side
499,221.13x = 187,984,784,963.40 - Step 5: Solve for x
x = 187,984,784,963.40/499,221.13 - Step 6: Final answer
x = 376,556.15
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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.