Finding the Fourth Proportional to 821,878.60, 1,232,040.30 and 485,177.80
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Solution
The fourth proportional to 821,878.60, 1,232,040.30 and 485,177.80 is: 727,307.66
Step by Step Solution
- Step 1: Write the proportion equation
821,878.60 : 1,232,040.30 = 485,177.80 : x - Step 2: Convert to fraction form
821,878.60/1,232,040.30 = 485,177.80/x - Step 3: Cross multiply
821,878.60x = 1,232,040.30 × 485,177.80 - Step 4: Simplify right side
821,878.60x = 597,758,602,265.34 - Step 5: Solve for x
x = 597,758,602,265.34/821,878.60 - Step 6: Final answer
x = 727,307.66
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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.