Finding the Fourth Proportional to 1,130,553.48, 1,560,090.42 and 647,122.44
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Solution
The fourth proportional to 1,130,553.48, 1,560,090.42 and 647,122.44 is: 892,986.96
Step by Step Solution
- Step 1: Write the proportion equation
1,130,553.48 : 1,560,090.42 = 647,122.44 : x - Step 2: Convert to fraction form
1,130,553.48/1,560,090.42 = 647,122.44/x - Step 3: Cross multiply
1,130,553.48x = 1,560,090.42 × 647,122.44 - Step 4: Simplify right side
1,130,553.48x = 1,009,569,519,211.02 - Step 5: Solve for x
x = 1,009,569,519,211.02/1,130,553.48 - Step 6: Final answer
x = 892,986.96
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1.5x scale
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.