Finding the Fourth Proportional to 684,276.44, 944,284.77 and 378,345.05
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Solution
The fourth proportional to 684,276.44, 944,284.77 and 378,345.05 is: 522,106.92
Step by Step Solution
- Step 1: Write the proportion equation
684,276.44 : 944,284.77 = 378,345.05 : x - Step 2: Convert to fraction form
684,276.44/944,284.77 = 378,345.05/x - Step 3: Cross multiply
684,276.44x = 944,284.77 × 378,345.05 - Step 4: Simplify right side
684,276.44x = 357,265,463,798.47 - Step 5: Solve for x
x = 357,265,463,798.47/684,276.44 - Step 6: Final answer
x = 522,106.92
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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.