Finding the Fourth Proportional to 1,129,698.99, 1,559,011.74 and 620,412.30
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Solution
The fourth proportional to 1,129,698.99, 1,559,011.74 and 620,412.30 is: 856,183.88
Step by Step Solution
- Step 1: Write the proportion equation
1,129,698.99 : 1,559,011.74 = 620,412.30 : x - Step 2: Convert to fraction form
1,129,698.99/1,559,011.74 = 620,412.30/x - Step 3: Cross multiply
1,129,698.99x = 1,559,011.74 × 620,412.30 - Step 4: Simplify right side
1,129,698.99x = 967,230,059,340.40 - Step 5: Solve for x
x = 967,230,059,340.40/1,129,698.99 - Step 6: Final answer
x = 856,183.88
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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.