Finding the Fourth Proportional to 1,130,754.65, 1,560,478.99 and 665,524.20
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Solution
The fourth proportional to 1,130,754.65, 1,560,478.99 and 665,524.20 is: 918,445.51
Step by Step Solution
- Step 1: Write the proportion equation
1,130,754.65 : 1,560,478.99 = 665,524.20 : x - Step 2: Convert to fraction form
1,130,754.65/1,560,478.99 = 665,524.20/x - Step 3: Cross multiply
1,130,754.65x = 1,560,478.99 × 665,524.20 - Step 4: Simplify right side
1,130,754.65x = 1,038,536,525,287.06 - Step 5: Solve for x
x = 1,038,536,525,287.06/1,130,754.65 - Step 6: Final answer
x = 918,445.51
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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.