Finding the Fourth Proportional to 1,283,645.50, 1,771,430.86 and 702,905.28
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Solution
The fourth proportional to 1,283,645.50, 1,771,430.86 and 702,905.28 is: 970,009.32
Step by Step Solution
- Step 1: Write the proportion equation
1,283,645.50 : 1,771,430.86 = 702,905.28 : x - Step 2: Convert to fraction form
1,283,645.50/1,771,430.86 = 702,905.28/x - Step 3: Cross multiply
1,283,645.50x = 1,771,430.86 × 702,905.28 - Step 4: Simplify right side
1,283,645.50x = 1,245,148,104,648.94 - Step 5: Solve for x
x = 1,245,148,104,648.94/1,283,645.50 - Step 6: Final answer
x = 970,009.32
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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.