Finding the Fourth Proportional to 1,219,743.18, 1,683,282.49 and 675,828.09
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Solution
The fourth proportional to 1,219,743.18, 1,683,282.49 and 675,828.09 is: 932,663.21
Step by Step Solution
- Step 1: Write the proportion equation
1,219,743.18 : 1,683,282.49 = 675,828.09 : x - Step 2: Convert to fraction form
1,219,743.18/1,683,282.49 = 675,828.09/x - Step 3: Cross multiply
1,219,743.18x = 1,683,282.49 × 675,828.09 - Step 4: Simplify right side
1,219,743.18x = 1,137,609,588,457.57 - Step 5: Solve for x
x = 1,137,609,588,457.57/1,219,743.18 - Step 6: Final answer
x = 932,663.21
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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.