Finding the Fourth Proportional to 506,319.11, 698,698.11 and 288,574.91
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Solution
The fourth proportional to 506,319.11, 698,698.11 and 288,574.91 is: 398,220.69
Step by Step Solution
- Step 1: Write the proportion equation
506,319.11 : 698,698.11 = 288,574.91 : x - Step 2: Convert to fraction form
506,319.11/698,698.11 = 288,574.91/x - Step 3: Cross multiply
506,319.11x = 698,698.11 × 288,574.91 - Step 4: Simplify right side
506,319.11x = 201,626,744,210.42 - Step 5: Solve for x
x = 201,626,744,210.42/506,319.11 - Step 6: Final answer
x = 398,220.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.