Finding the Fourth Proportional to 1,247,115.02, 1,719,870.99 and 817,239.02
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Solution
The fourth proportional to 1,247,115.02, 1,719,870.99 and 817,239.02 is: 1,127,037.73
Step by Step Solution
- Step 1: Write the proportion equation
1,247,115.02 : 1,719,870.99 = 817,239.02 : x - Step 2: Convert to fraction form
1,247,115.02/1,719,870.99 = 817,239.02/x - Step 3: Cross multiply
1,247,115.02x = 1,719,870.99 × 817,239.02 - Step 4: Simplify right side
1,247,115.02x = 1,405,545,682,394.03 - Step 5: Solve for x
x = 1,405,545,682,394.03/1,247,115.02 - Step 6: Final answer
x = 1,127,037.73
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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.