Finding the Fourth Proportional to 772,187.70, 1,158,281.55 and 266,747.70
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Solution
The fourth proportional to 772,187.70, 1,158,281.55 and 266,747.70 is: 400,121.55
Step by Step Solution
- Step 1: Write the proportion equation
772,187.70 : 1,158,281.55 = 266,747.70 : x - Step 2: Convert to fraction form
772,187.70/1,158,281.55 = 266,747.70/x - Step 3: Cross multiply
772,187.70x = 1,158,281.55 × 266,747.70 - Step 4: Simplify right side
772,187.70x = 308,968,939,414.94 - Step 5: Solve for x
x = 308,968,939,414.94/772,187.70 - Step 6: Final answer
x = 400,121.55
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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.