Finding the Fourth Proportional to 1,272,457.80, 1,908,686.70 and 1,235,593.80
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Solution
The fourth proportional to 1,272,457.80, 1,908,686.70 and 1,235,593.80 is: 1,853,390.70
Step by Step Solution
- Step 1: Write the proportion equation
1,272,457.80 : 1,908,686.70 = 1,235,593.80 : x - Step 2: Convert to fraction form
1,272,457.80/1,908,686.70 = 1,235,593.80/x - Step 3: Cross multiply
1,272,457.80x = 1,908,686.70 × 1,235,593.80 - Step 4: Simplify right side
1,272,457.80x = 2,358,361,452,662.46 - Step 5: Solve for x
x = 2,358,361,452,662.46/1,272,457.80 - Step 6: Final answer
x = 1,853,390.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.