Finding the Fourth Proportional to 713,687.70, 1,070,531.55 and 292,823.70
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Solution
The fourth proportional to 713,687.70, 1,070,531.55 and 292,823.70 is: 439,235.55
Step by Step Solution
- Step 1: Write the proportion equation
713,687.70 : 1,070,531.55 = 292,823.70 : x - Step 2: Convert to fraction form
713,687.70/1,070,531.55 = 292,823.70/x - Step 3: Cross multiply
713,687.70x = 1,070,531.55 × 292,823.70 - Step 4: Simplify right side
713,687.70x = 313,477,009,437.74 - Step 5: Solve for x
x = 313,477,009,437.74/713,687.70 - Step 6: Final answer
x = 439,235.55
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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.