Finding the Fourth Proportional to 1,228,237.20, 1,840,606.20 and 905,873.40
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Solution
The fourth proportional to 1,228,237.20, 1,840,606.20 and 905,873.40 is: 1,357,519.70
Step by Step Solution
- Step 1: Write the proportion equation
1,228,237.20 : 1,840,606.20 = 905,873.40 : x - Step 2: Convert to fraction form
1,228,237.20/1,840,606.20 = 905,873.40/x - Step 3: Cross multiply
1,228,237.20x = 1,840,606.20 × 905,873.40 - Step 4: Simplify right side
1,228,237.20x = 1,667,356,196,455.08 - Step 5: Solve for x
x = 1,667,356,196,455.08/1,228,237.20 - Step 6: Final answer
x = 1,357,519.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.