Finding the Fourth Proportional to 499,075.36, 747,905.37 and 386,230.28
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Solution
The fourth proportional to 499,075.36, 747,905.37 and 386,230.28 is: 578,797.75
Step by Step Solution
- Step 1: Write the proportion equation
499,075.36 : 747,905.37 = 386,230.28 : x - Step 2: Convert to fraction form
499,075.36/747,905.37 = 386,230.28/x - Step 3: Cross multiply
499,075.36x = 747,905.37 × 386,230.28 - Step 4: Simplify right side
499,075.36x = 288,863,695,280.71 - Step 5: Solve for x
x = 288,863,695,280.71/499,075.36 - Step 6: Final answer
x = 578,797.75
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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.