Finding the Fourth Proportional to 498,943.80, 748,415.70 and 498,943.80
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Solution
The fourth proportional to 498,943.80, 748,415.70 and 498,943.80 is: 748,415.70
Step by Step Solution
- Step 1: Write the proportion equation
498,943.80 : 748,415.70 = 498,943.80 : x - Step 2: Convert to fraction form
498,943.80/748,415.70 = 498,943.80/x - Step 3: Cross multiply
498,943.80x = 748,415.70 × 498,943.80 - Step 4: Simplify right side
498,943.80x = 373,417,373,337.66 - Step 5: Solve for x
x = 373,417,373,337.66/498,943.80 - Step 6: Final answer
x = 748,415.70
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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.