Finding the Fourth Proportional to 912,774.80, 1,367,995.80 and 438,438.80
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Solution
The fourth proportional to 912,774.80, 1,367,995.80 and 438,438.80 is: 657,097.94
Step by Step Solution
- Step 1: Write the proportion equation
912,774.80 : 1,367,995.80 = 438,438.80 : x - Step 2: Convert to fraction form
912,774.80/1,367,995.80 = 438,438.80/x - Step 3: Cross multiply
912,774.80x = 1,367,995.80 × 438,438.80 - Step 4: Simplify right side
912,774.80x = 599,782,436,957.04 - Step 5: Solve for x
x = 599,782,436,957.04/912,774.80 - Step 6: Final answer
x = 657,097.94
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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.