Finding the Fourth Proportional to 732,804,554.70, 1,099,206,832.05 and 388,430,786.70
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Solution
The fourth proportional to 732,804,554.70, 1,099,206,832.05 and 388,430,786.70 is: 582,646,180.05
Step by Step Solution
- Step 1: Write the proportion equation
732,804,554.70 : 1,099,206,832.05 = 388,430,786.70 : x - Step 2: Convert to fraction form
732,804,554.70/1,099,206,832.05 = 388,430,786.70/x - Step 3: Cross multiply
732,804,554.70x = 1,099,206,832.05 × 388,430,786.70 - Step 4: Simplify right side
732,804,554.70x = 426,965,774,519,196,224 - Step 5: Solve for x
x = 426,965,774,519,196,224/732,804,554.70 - Step 6: Final answer
x = 582,646,180.05
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Double scale
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Similar ratio
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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.