Finding the Fourth Proportional to 660,904.35, 991,378.08 and 314,612.70
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Solution
The fourth proportional to 660,904.35, 991,378.08 and 314,612.70 is: 471,929.31
Step by Step Solution
- Step 1: Write the proportion equation
660,904.35 : 991,378.08 = 314,612.70 : x - Step 2: Convert to fraction form
660,904.35/991,378.08 = 314,612.70/x - Step 3: Cross multiply
660,904.35x = 991,378.08 × 314,612.70 - Step 4: Simplify right side
660,904.35x = 311,900,134,469.62 - Step 5: Solve for x
x = 311,900,134,469.62/660,904.35 - Step 6: Final answer
x = 471,929.31
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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.