Finding the Fourth Proportional to 653,107.80, 979,661.70 and 487,219.80
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Solution
The fourth proportional to 653,107.80, 979,661.70 and 487,219.80 is: 730,829.70
Step by Step Solution
- Step 1: Write the proportion equation
653,107.80 : 979,661.70 = 487,219.80 : x - Step 2: Convert to fraction form
653,107.80/979,661.70 = 487,219.80/x - Step 3: Cross multiply
653,107.80x = 979,661.70 × 487,219.80 - Step 4: Simplify right side
653,107.80x = 477,310,577,541.66 - Step 5: Solve for x
x = 477,310,577,541.66/653,107.80 - Step 6: Final answer
x = 730,829.70
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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.