Finding the Fourth Proportional to 719,569.26, 1,079,338.74 and 239,831.76
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Solution
The fourth proportional to 719,569.26, 1,079,338.74 and 239,831.76 is: 359,742.59
Step by Step Solution
- Step 1: Write the proportion equation
719,569.26 : 1,079,338.74 = 239,831.76 : x - Step 2: Convert to fraction form
719,569.26/1,079,338.74 = 239,831.76/x - Step 3: Cross multiply
719,569.26x = 1,079,338.74 × 239,831.76 - Step 4: Simplify right side
719,569.26x = 258,859,709,650.38 - Step 5: Solve for x
x = 258,859,709,650.38/719,569.26 - Step 6: Final answer
x = 359,742.59
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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.