Finding the Fourth Proportional to 684,284.58, 944,246.12 and 378,319.07
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Solution
The fourth proportional to 684,284.58, 944,246.12 and 378,319.07 is: 522,043.50
Step by Step Solution
- Step 1: Write the proportion equation
684,284.58 : 944,246.12 = 378,319.07 : x - Step 2: Convert to fraction form
684,284.58/944,246.12 = 378,319.07/x - Step 3: Cross multiply
684,284.58x = 944,246.12 × 378,319.07 - Step 4: Simplify right side
684,284.58x = 357,226,314,438.53 - Step 5: Solve for x
x = 357,226,314,438.53/684,284.58 - Step 6: Final answer
x = 522,043.50
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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.