Finding the Fourth Proportional to 478,323.40, 716,102.70 and 291,699.40
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Solution
The fourth proportional to 478,323.40, 716,102.70 and 291,699.40 is: 436,706.06
Step by Step Solution
- Step 1: Write the proportion equation
478,323.40 : 716,102.70 = 291,699.40 : x - Step 2: Convert to fraction form
478,323.40/716,102.70 = 291,699.40/x - Step 3: Cross multiply
478,323.40x = 716,102.70 × 291,699.40 - Step 4: Simplify right side
478,323.40x = 208,886,727,928.38 - Step 5: Solve for x
x = 208,886,727,928.38/478,323.40 - Step 6: Final answer
x = 436,706.06
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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.