Finding the Fourth Proportional to 1,087,479.48, 1,501,140.21 and 724,770.99
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Solution
The fourth proportional to 1,087,479.48, 1,501,140.21 and 724,770.99 is: 1,000,462.90
Step by Step Solution
- Step 1: Write the proportion equation
1,087,479.48 : 1,501,140.21 = 724,770.99 : x - Step 2: Convert to fraction form
1,087,479.48/1,501,140.21 = 724,770.99/x - Step 3: Cross multiply
1,087,479.48x = 1,501,140.21 × 724,770.99 - Step 4: Simplify right side
1,087,479.48x = 1,087,982,876,130.51 - Step 5: Solve for x
x = 1,087,982,876,130.51/1,087,479.48 - Step 6: Final answer
x = 1,000,462.90
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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.