Finding the Fourth Proportional to 470,821.60, 706,232.40 and 434,879.20
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Solution
The fourth proportional to 470,821.60, 706,232.40 and 434,879.20 is: 652,318.80
Step by Step Solution
- Step 1: Write the proportion equation
470,821.60 : 706,232.40 = 434,879.20 : x - Step 2: Convert to fraction form
470,821.60/706,232.40 = 434,879.20/x - Step 3: Cross multiply
470,821.60x = 706,232.40 × 434,879.20 - Step 4: Simplify right side
470,821.60x = 307,125,781,126.08 - Step 5: Solve for x
x = 307,125,781,126.08/470,821.60 - Step 6: Final answer
x = 652,318.80
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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.