Finding the Fourth Proportional to 781,122.47, 1,077,898.14 and 436,898.79
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Solution
The fourth proportional to 781,122.47, 1,077,898.14 and 436,898.79 is: 602,891.88
Step by Step Solution
- Step 1: Write the proportion equation
781,122.47 : 1,077,898.14 = 436,898.79 : x - Step 2: Convert to fraction form
781,122.47/1,077,898.14 = 436,898.79/x - Step 3: Cross multiply
781,122.47x = 1,077,898.14 × 436,898.79 - Step 4: Simplify right side
781,122.47x = 470,932,393,109.25 - Step 5: Solve for x
x = 470,932,393,109.25/781,122.47 - Step 6: Final answer
x = 602,891.88
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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.