Finding the Fourth Proportional to 586,276.80, 879,415.20 and 516,235.20
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Solution
The fourth proportional to 586,276.80, 879,415.20 and 516,235.20 is: 774,352.80
Step by Step Solution
- Step 1: Write the proportion equation
586,276.80 : 879,415.20 = 516,235.20 : x - Step 2: Convert to fraction form
586,276.80/879,415.20 = 516,235.20/x - Step 3: Cross multiply
586,276.80x = 879,415.20 × 516,235.20 - Step 4: Simplify right side
586,276.80x = 453,985,081,655.04 - Step 5: Solve for x
x = 453,985,081,655.04/586,276.80 - Step 6: Final answer
x = 774,352.80
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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.