Finding the Fourth Proportional to 2,257,834.99, 3,115,813.91 and 1,225,342.50
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Solution
The fourth proportional to 2,257,834.99, 3,115,813.91 and 1,225,342.50 is: 1,690,973.53
Step by Step Solution
- Step 1: Write the proportion equation
2,257,834.99 : 3,115,813.91 = 1,225,342.50 : x - Step 2: Convert to fraction form
2,257,834.99/3,115,813.91 = 1,225,342.50/x - Step 3: Cross multiply
2,257,834.99x = 3,115,813.91 × 1,225,342.50 - Step 4: Simplify right side
2,257,834.99x = 3,817,939,206,014.18 - Step 5: Solve for x
x = 3,817,939,206,014.18/2,257,834.99 - Step 6: Final answer
x = 1,690,973.53
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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.