Finding the Fourth Proportional to 781,451.07, 1,078,447.67 and 437,283.99
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Solution
The fourth proportional to 781,451.07, 1,078,447.67 and 437,283.99 is: 603,477.20
Step by Step Solution
- Step 1: Write the proportion equation
781,451.07 : 1,078,447.67 = 437,283.99 : x - Step 2: Convert to fraction form
781,451.07/1,078,447.67 = 437,283.99/x - Step 3: Cross multiply
781,451.07x = 1,078,447.67 × 437,283.99 - Step 4: Simplify right side
781,451.07x = 471,587,901,237.01 - Step 5: Solve for x
x = 471,587,901,237.01/781,451.07 - Step 6: Final answer
x = 603,477.20
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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.