Finding the Fourth Proportional to 1,687,785.99, 2,329,147.49 and 913,417.52
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Solution
The fourth proportional to 1,687,785.99, 2,329,147.49 and 913,417.52 is: 1,260,517.70
Step by Step Solution
- Step 1: Write the proportion equation
1,687,785.99 : 2,329,147.49 = 913,417.52 : x - Step 2: Convert to fraction form
1,687,785.99/2,329,147.49 = 913,417.52/x - Step 3: Cross multiply
1,687,785.99x = 2,329,147.49 × 913,417.52 - Step 4: Simplify right side
1,687,785.99x = 2,127,484,112,384.29 - Step 5: Solve for x
x = 2,127,484,112,384.29/1,687,785.99 - Step 6: Final answer
x = 1,260,517.70
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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.