Finding the Fourth Proportional to 1,228,651.56, 1,695,624.30 and 745,237.08
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Solution
The fourth proportional to 1,228,651.56, 1,695,624.30 and 745,237.08 is: 1,028,478.82
Step by Step Solution
- Step 1: Write the proportion equation
1,228,651.56 : 1,695,624.30 = 745,237.08 : x - Step 2: Convert to fraction form
1,228,651.56/1,695,624.30 = 745,237.08/x - Step 3: Cross multiply
1,228,651.56x = 1,695,624.30 × 745,237.08 - Step 4: Simplify right side
1,228,651.56x = 1,263,642,102,109.04 - Step 5: Solve for x
x = 1,263,642,102,109.04/1,228,651.56 - Step 6: Final answer
x = 1,028,478.82
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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.