Finding the Fourth Proportional to 519,871.80, 779,807.70 and 125,887.80
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Solution
The fourth proportional to 519,871.80, 779,807.70 and 125,887.80 is: 188,831.70
Step by Step Solution
- Step 1: Write the proportion equation
519,871.80 : 779,807.70 = 125,887.80 : x - Step 2: Convert to fraction form
519,871.80/779,807.70 = 125,887.80/x - Step 3: Cross multiply
519,871.80x = 779,807.70 × 125,887.80 - Step 4: Simplify right side
519,871.80x = 98,168,275,776.06 - Step 5: Solve for x
x = 98,168,275,776.06/519,871.80 - Step 6: Final answer
x = 188,831.70
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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.