Finding the Fourth Proportional to 750,840.84, 1,036,186.23 and 411,309.09
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Solution
The fourth proportional to 750,840.84, 1,036,186.23 and 411,309.09 is: 567,620.72
Step by Step Solution
- Step 1: Write the proportion equation
750,840.84 : 1,036,186.23 = 411,309.09 : x - Step 2: Convert to fraction form
750,840.84/1,036,186.23 = 411,309.09/x - Step 3: Cross multiply
750,840.84x = 1,036,186.23 × 411,309.09 - Step 4: Simplify right side
750,840.84x = 426,192,815,331.83 - Step 5: Solve for x
x = 426,192,815,331.83/750,840.84 - Step 6: Final answer
x = 567,620.72
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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.