Finding the Fourth Proportional to 970,878.20, 1,456,965.12 and 339,792.08
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Solution
The fourth proportional to 970,878.20, 1,456,965.12 and 339,792.08 is: 509,914.85
Step by Step Solution
- Step 1: Write the proportion equation
970,878.20 : 1,456,965.12 = 339,792.08 : x - Step 2: Convert to fraction form
970,878.20/1,456,965.12 = 339,792.08/x - Step 3: Cross multiply
970,878.20x = 1,456,965.12 × 339,792.08 - Step 4: Simplify right side
970,878.20x = 495,065,208,612.25 - Step 5: Solve for x
x = 495,065,208,612.25/970,878.20 - Step 6: Final answer
x = 509,914.85
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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.