Finding the Fourth Proportional to 684,219.65, 944,184.95 and 378,278.19
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Solution
The fourth proportional to 684,219.65, 944,184.95 and 378,278.19 is: 522,002.80
Step by Step Solution
- Step 1: Write the proportion equation
684,219.65 : 944,184.95 = 378,278.19 : x - Step 2: Convert to fraction form
684,219.65/944,184.95 = 378,278.19/x - Step 3: Cross multiply
684,219.65x = 944,184.95 × 378,278.19 - Step 4: Simplify right side
684,219.65x = 357,164,572,019.85 - Step 5: Solve for x
x = 357,164,572,019.85/684,219.65 - Step 6: Final answer
x = 522,002.80
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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.