Finding the Fourth Proportional to 977,809.20, 1,466,713.80 and 942,379.80
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Solution
The fourth proportional to 977,809.20, 1,466,713.80 and 942,379.80 is: 1,413,569.70
Step by Step Solution
- Step 1: Write the proportion equation
977,809.20 : 1,466,713.80 = 942,379.80 : x - Step 2: Convert to fraction form
977,809.20/1,466,713.80 = 942,379.80/x - Step 3: Cross multiply
977,809.20x = 1,466,713.80 × 942,379.80 - Step 4: Simplify right side
977,809.20x = 1,382,201,457,501.24 - Step 5: Solve for x
x = 1,382,201,457,501.24/977,809.20 - Step 6: Final answer
x = 1,413,569.70
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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.