Finding the Fourth Proportional to 1,011,690.24, 1,396,129.68 and 558,978
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Solution
The fourth proportional to 1,011,690.24, 1,396,129.68 and 558,978 is: 771,388.06
Step by Step Solution
- Step 1: Write the proportion equation
1,011,690.24 : 1,396,129.68 = 558,978 : x - Step 2: Convert to fraction form
1,011,690.24/1,396,129.68 = 558,978/x - Step 3: Cross multiply
1,011,690.24x = 1,396,129.68 × 558,978 - Step 4: Simplify right side
1,011,690.24x = 780,405,776,267.04 - Step 5: Solve for x
x = 780,405,776,267.04/1,011,690.24 - Step 6: Final answer
x = 771,388.06
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.