Finding the Fourth Proportional to 900,721.26, 1,241,566.11 and 709,431.66
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Solution
The fourth proportional to 900,721.26, 1,241,566.11 and 709,431.66 is: 977,889.99
Step by Step Solution
- Step 1: Write the proportion equation
900,721.26 : 1,241,566.11 = 709,431.66 : x - Step 2: Convert to fraction form
900,721.26/1,241,566.11 = 709,431.66/x - Step 3: Cross multiply
900,721.26x = 1,241,566.11 × 709,431.66 - Step 4: Simplify right side
900,721.26x = 880,806,306,417.04 - Step 5: Solve for x
x = 880,806,306,417.04/900,721.26 - Step 6: Final answer
x = 977,889.99
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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.