Finding the Fourth Proportional to 417,428.08, 575,617.76 and 357,198.08
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Solution
The fourth proportional to 417,428.08, 575,617.76 and 357,198.08 is: 492,562.84
Step by Step Solution
- Step 1: Write the proportion equation
417,428.08 : 575,617.76 = 357,198.08 : x - Step 2: Convert to fraction form
417,428.08/575,617.76 = 357,198.08/x - Step 3: Cross multiply
417,428.08x = 575,617.76 × 357,198.08 - Step 4: Simplify right side
417,428.08x = 205,609,558,685.90 - Step 5: Solve for x
x = 205,609,558,685.90/417,428.08 - Step 6: Final answer
x = 492,562.84
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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.