Finding the Fourth Proportional to 498,575.68, 688,050.72 and 272,238.40
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Solution
The fourth proportional to 498,575.68, 688,050.72 and 272,238.40 is: 375,697.88
Step by Step Solution
- Step 1: Write the proportion equation
498,575.68 : 688,050.72 = 272,238.40 : x - Step 2: Convert to fraction form
498,575.68/688,050.72 = 272,238.40/x - Step 3: Cross multiply
498,575.68x = 688,050.72 × 272,238.40 - Step 4: Simplify right side
498,575.68x = 187,313,827,131.65 - Step 5: Solve for x
x = 187,313,827,131.65/498,575.68 - Step 6: Final answer
x = 375,697.88
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1.5x scale
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.