Finding the Fourth Proportional to 508,879.70, 763,319.55 and 260,047.70
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Solution
The fourth proportional to 508,879.70, 763,319.55 and 260,047.70 is: 390,071.55
Step by Step Solution
- Step 1: Write the proportion equation
508,879.70 : 763,319.55 = 260,047.70 : x - Step 2: Convert to fraction form
508,879.70/763,319.55 = 260,047.70/x - Step 3: Cross multiply
508,879.70x = 763,319.55 × 260,047.70 - Step 4: Simplify right side
508,879.70x = 198,499,493,342.54 - Step 5: Solve for x
x = 198,499,493,342.54/508,879.70 - Step 6: Final answer
x = 390,071.55
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1.5x scale
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.