Finding the Fourth Proportional to 1,115,316.09, 1,539,622.35 and 708,044.04
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Solution
The fourth proportional to 1,115,316.09, 1,539,622.35 and 708,044.04 is: 977,409.40
Step by Step Solution
- Step 1: Write the proportion equation
1,115,316.09 : 1,539,622.35 = 708,044.04 : x - Step 2: Convert to fraction form
1,115,316.09/1,539,622.35 = 708,044.04/x - Step 3: Cross multiply
1,115,316.09x = 1,539,622.35 × 708,044.04 - Step 4: Simplify right side
1,115,316.09x = 1,090,120,428,768.29 - Step 5: Solve for x
x = 1,090,120,428,768.29/1,115,316.09 - Step 6: Final answer
x = 977,409.40
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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.