Finding the Fourth Proportional to 972,205.80, 1,458,308.70 and 499,813.80
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Solution
The fourth proportional to 972,205.80, 1,458,308.70 and 499,813.80 is: 749,720.70
Step by Step Solution
- Step 1: Write the proportion equation
972,205.80 : 1,458,308.70 = 499,813.80 : x - Step 2: Convert to fraction form
972,205.80/1,458,308.70 = 499,813.80/x - Step 3: Cross multiply
972,205.80x = 1,458,308.70 × 499,813.80 - Step 4: Simplify right side
972,205.80x = 728,882,812,920.06 - Step 5: Solve for x
x = 728,882,812,920.06/972,205.80 - Step 6: Final answer
x = 749,720.70
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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.