Finding the Fourth Proportional to 859,865.36, 1,289,801.04 and 260,831.68
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Solution
The fourth proportional to 859,865.36, 1,289,801.04 and 260,831.68 is: 391,248.43
Step by Step Solution
- Step 1: Write the proportion equation
859,865.36 : 1,289,801.04 = 260,831.68 : x - Step 2: Convert to fraction form
859,865.36/1,289,801.04 = 260,831.68/x - Step 3: Cross multiply
859,865.36x = 1,289,801.04 × 260,831.68 - Step 4: Simplify right side
859,865.36x = 336,420,972,128.95 - Step 5: Solve for x
x = 336,420,972,128.95/859,865.36 - Step 6: Final answer
x = 391,248.43
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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.