Finding the Fourth Proportional to 990,108.36, 1,484,924.67 and 457,117.56
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Solution
The fourth proportional to 990,108.36, 1,484,924.67 and 457,117.56 is: 685,566.52
Step by Step Solution
- Step 1: Write the proportion equation
990,108.36 : 1,484,924.67 = 457,117.56 : x - Step 2: Convert to fraction form
990,108.36/1,484,924.67 = 457,117.56/x - Step 3: Cross multiply
990,108.36x = 1,484,924.67 × 457,117.56 - Step 4: Simplify right side
990,108.36x = 678,785,141,934.21 - Step 5: Solve for x
x = 678,785,141,934.21/990,108.36 - Step 6: Final answer
x = 685,566.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.