Finding the Fourth Proportional to 715,506.08, 987,458.98 and 486,571.23
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Solution
The fourth proportional to 715,506.08, 987,458.98 and 486,571.23 is: 671,509.50
Step by Step Solution
- Step 1: Write the proportion equation
715,506.08 : 987,458.98 = 486,571.23 : x - Step 2: Convert to fraction form
715,506.08/987,458.98 = 486,571.23/x - Step 3: Cross multiply
715,506.08x = 987,458.98 × 486,571.23 - Step 4: Simplify right side
715,506.08x = 480,469,130,473.15 - Step 5: Solve for x
x = 480,469,130,473.15/715,506.08 - Step 6: Final answer
x = 671,509.50
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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.