Finding the Fourth Proportional to 539,239.80, 808,859.70 and 361,831.80
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Solution
The fourth proportional to 539,239.80, 808,859.70 and 361,831.80 is: 542,747.70
Step by Step Solution
- Step 1: Write the proportion equation
539,239.80 : 808,859.70 = 361,831.80 : x - Step 2: Convert to fraction form
539,239.80/808,859.70 = 361,831.80/x - Step 3: Cross multiply
539,239.80x = 808,859.70 × 361,831.80 - Step 4: Simplify right side
539,239.80x = 292,671,161,198.46 - Step 5: Solve for x
x = 292,671,161,198.46/539,239.80 - Step 6: Final answer
x = 542,747.70
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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.