Finding the Fourth Proportional to 686,211.93, 1,028,371.22 and 495,149.91
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Solution
The fourth proportional to 686,211.93, 1,028,371.22 and 495,149.91 is: 742,041.78
Step by Step Solution
- Step 1: Write the proportion equation
686,211.93 : 1,028,371.22 = 495,149.91 : x - Step 2: Convert to fraction form
686,211.93/1,028,371.22 = 495,149.91/x - Step 3: Cross multiply
686,211.93x = 1,028,371.22 × 495,149.91 - Step 4: Simplify right side
686,211.93x = 509,197,916,946.24 - Step 5: Solve for x
x = 509,197,916,946.24/686,211.93 - Step 6: Final answer
x = 742,041.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.