Finding the Fourth Proportional to 1,678,386.92, 2,317,031.70 and 1,137,381.08
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Solution
The fourth proportional to 1,678,386.92, 2,317,031.70 and 1,137,381.08 is: 1,570,167.16
Step by Step Solution
- Step 1: Write the proportion equation
1,678,386.92 : 2,317,031.70 = 1,137,381.08 : x - Step 2: Convert to fraction form
1,678,386.92/2,317,031.70 = 1,137,381.08/x - Step 3: Cross multiply
1,678,386.92x = 2,317,031.70 × 1,137,381.08 - Step 4: Simplify right side
1,678,386.92x = 2,635,348,017,340.24 - Step 5: Solve for x
x = 2,635,348,017,340.24/1,678,386.92 - Step 6: Final answer
x = 1,570,167.16
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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.