Finding the Fourth Proportional to 478,823.40, 716,852.70 and 292,199.40
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Solution
The fourth proportional to 478,823.40, 716,852.70 and 292,199.40 is: 437,455.50
Step by Step Solution
- Step 1: Write the proportion equation
478,823.40 : 716,852.70 = 292,199.40 : x - Step 2: Convert to fraction form
478,823.40/716,852.70 = 292,199.40/x - Step 3: Cross multiply
478,823.40x = 716,852.70 × 292,199.40 - Step 4: Simplify right side
478,823.40x = 209,463,928,828.38 - Step 5: Solve for x
x = 209,463,928,828.38/478,823.40 - Step 6: Final answer
x = 437,455.50
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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.