Finding the Fourth Proportional to 985,781.81, 1,360,378.97 and 533,072.81
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Solution
The fourth proportional to 985,781.81, 1,360,378.97 and 533,072.81 is: 735,640.52
Step by Step Solution
- Step 1: Write the proportion equation
985,781.81 : 1,360,378.97 = 533,072.81 : x - Step 2: Convert to fraction form
985,781.81/1,360,378.97 = 533,072.81/x - Step 3: Cross multiply
985,781.81x = 1,360,378.97 × 533,072.81 - Step 4: Simplify right side
985,781.81x = 725,181,042,937.41 - Step 5: Solve for x
x = 725,181,042,937.41/985,781.81 - Step 6: Final answer
x = 735,640.52
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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.