Finding the Fourth Proportional to 749,723.68, 1,034,646.24 and 427,382.08
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Solution
The fourth proportional to 749,723.68, 1,034,646.24 and 427,382.08 is: 589,802.98
Step by Step Solution
- Step 1: Write the proportion equation
749,723.68 : 1,034,646.24 = 427,382.08 : x - Step 2: Convert to fraction form
749,723.68/1,034,646.24 = 427,382.08/x - Step 3: Cross multiply
749,723.68x = 1,034,646.24 × 427,382.08 - Step 4: Simplify right side
749,723.68x = 442,189,262,115.38 - Step 5: Solve for x
x = 442,189,262,115.38/749,723.68 - Step 6: Final answer
x = 589,802.98
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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.