Finding the Fourth Proportional to 1,130,713, 1,560,383.94 and 621,448.18
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Solution
The fourth proportional to 1,130,713, 1,560,383.94 and 621,448.18 is: 857,598.49
Step by Step Solution
- Step 1: Write the proportion equation
1,130,713 : 1,560,383.94 = 621,448.18 : x - Step 2: Convert to fraction form
1,130,713/1,560,383.94 = 621,448.18/x - Step 3: Cross multiply
1,130,713x = 1,560,383.94 × 621,448.18 - Step 4: Simplify right side
1,130,713x = 969,697,759,614.23 - Step 5: Solve for x
x = 969,697,759,614.23/1,130,713 - Step 6: Final answer
x = 857,598.49
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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.