Finding the Fourth Proportional to 684,694.08, 944,860.16 and 378,762.48
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Solution
The fourth proportional to 684,694.08, 944,860.16 and 378,762.48 is: 522,682.45
Step by Step Solution
- Step 1: Write the proportion equation
684,694.08 : 944,860.16 = 378,762.48 : x - Step 2: Convert to fraction form
684,694.08/944,860.16 = 378,762.48/x - Step 3: Cross multiply
684,694.08x = 944,860.16 × 378,762.48 - Step 4: Simplify right side
684,694.08x = 357,877,577,454.80 - Step 5: Solve for x
x = 357,877,577,454.80/684,694.08 - Step 6: Final answer
x = 522,682.45
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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.