Finding the Fourth Proportional to 859,750.96, 1,186,431.40 and 492,215.80
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Solution
The fourth proportional to 859,750.96, 1,186,431.40 and 492,215.80 is: 679,243.53
Step by Step Solution
- Step 1: Write the proportion equation
859,750.96 : 1,186,431.40 = 492,215.80 : x - Step 2: Convert to fraction form
859,750.96/1,186,431.40 = 492,215.80/x - Step 3: Cross multiply
859,750.96x = 1,186,431.40 × 492,215.80 - Step 4: Simplify right side
859,750.96x = 583,980,280,696.12 - Step 5: Solve for x
x = 583,980,280,696.12/859,750.96 - Step 6: Final answer
x = 679,243.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.