Finding the Fourth Proportional to 478,858.70, 718,283.72 and 183,370.70
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Solution
The fourth proportional to 478,858.70, 718,283.72 and 183,370.70 is: 275,054.39
Step by Step Solution
- Step 1: Write the proportion equation
478,858.70 : 718,283.72 = 183,370.70 : x - Step 2: Convert to fraction form
478,858.70/718,283.72 = 183,370.70/x - Step 3: Cross multiply
478,858.70x = 718,283.72 × 183,370.70 - Step 4: Simplify right side
478,858.70x = 131,712,184,943.59 - Step 5: Solve for x
x = 131,712,184,943.59/478,858.70 - Step 6: Final answer
x = 275,054.39
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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.