Finding the Fourth Proportional to 745,971.12, 1,029,425.76 and 406,432.08
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Solution
The fourth proportional to 745,971.12, 1,029,425.76 and 406,432.08 is: 560,868.43
Step by Step Solution
- Step 1: Write the proportion equation
745,971.12 : 1,029,425.76 = 406,432.08 : x - Step 2: Convert to fraction form
745,971.12/1,029,425.76 = 406,432.08/x - Step 3: Cross multiply
745,971.12x = 1,029,425.76 × 406,432.08 - Step 4: Simplify right side
745,971.12x = 418,391,652,842.38 - Step 5: Solve for x
x = 418,391,652,842.38/745,971.12 - Step 6: Final answer
x = 560,868.43
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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.