Finding the Fourth Proportional to 1,008,410.80, 1,391,541.12 and 555,701.68
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Solution
The fourth proportional to 1,008,410.80, 1,391,541.12 and 555,701.68 is: 766,832.07
Step by Step Solution
- Step 1: Write the proportion equation
1,008,410.80 : 1,391,541.12 = 555,701.68 : x - Step 2: Convert to fraction form
1,008,410.80/1,391,541.12 = 555,701.68/x - Step 3: Cross multiply
1,008,410.80x = 1,391,541.12 × 555,701.68 - Step 4: Simplify right side
1,008,410.80x = 773,281,738,173.08 - Step 5: Solve for x
x = 773,281,738,173.08/1,008,410.80 - Step 6: Final answer
x = 766,832.07
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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.