Finding the Fourth Proportional to 781,280.06, 1,077,849.05 and 509,252.49
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Solution
The fourth proportional to 781,280.06, 1,077,849.05 and 509,252.49 is: 702,561.53
Step by Step Solution
- Step 1: Write the proportion equation
781,280.06 : 1,077,849.05 = 509,252.49 : x - Step 2: Convert to fraction form
781,280.06/1,077,849.05 = 509,252.49/x - Step 3: Cross multiply
781,280.06x = 1,077,849.05 × 509,252.49 - Step 4: Simplify right side
781,280.06x = 548,897,310,010.37 - Step 5: Solve for x
x = 548,897,310,010.37/781,280.06 - Step 6: Final answer
x = 702,561.53
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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.