Finding the Fourth Proportional to 1,115,346.72, 1,539,584.64 and 686,202.24
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Solution
The fourth proportional to 1,115,346.72, 1,539,584.64 and 686,202.24 is: 947,208.98
Step by Step Solution
- Step 1: Write the proportion equation
1,115,346.72 : 1,539,584.64 = 686,202.24 : x - Step 2: Convert to fraction form
1,115,346.72/1,539,584.64 = 686,202.24/x - Step 3: Cross multiply
1,115,346.72x = 1,539,584.64 × 686,202.24 - Step 4: Simplify right side
1,115,346.72x = 1,056,466,428,637.59 - Step 5: Solve for x
x = 1,056,466,428,637.59/1,115,346.72 - Step 6: Final answer
x = 947,208.98
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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.