Finding the Fourth Proportional to 713,689.70, 1,070,534.55 and 292,825.70
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Solution
The fourth proportional to 713,689.70, 1,070,534.55 and 292,825.70 is: 439,238.55
Step by Step Solution
- Step 1: Write the proportion equation
713,689.70 : 1,070,534.55 = 292,825.70 : x - Step 2: Convert to fraction form
713,689.70/1,070,534.55 = 292,825.70/x - Step 3: Cross multiply
713,689.70x = 1,070,534.55 × 292,825.70 - Step 4: Simplify right side
713,689.70x = 313,480,028,977.94 - Step 5: Solve for x
x = 313,480,028,977.94/713,689.70 - Step 6: Final answer
x = 439,238.55
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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.