Finding the Fourth Proportional to 1,124,890.74, 1,687,467.63 and 395,189.99
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Solution
The fourth proportional to 1,124,890.74, 1,687,467.63 and 395,189.99 is: 592,831.19
Step by Step Solution
- Step 1: Write the proportion equation
1,124,890.74 : 1,687,467.63 = 395,189.99 : x - Step 2: Convert to fraction form
1,124,890.74/1,687,467.63 = 395,189.99/x - Step 3: Cross multiply
1,124,890.74x = 1,687,467.63 × 395,189.99 - Step 4: Simplify right side
1,124,890.74x = 666,870,315,197.65 - Step 5: Solve for x
x = 666,870,315,197.65/1,124,890.74 - Step 6: Final answer
x = 592,831.19
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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.