Finding the Fourth Proportional to 495,430.48, 683,682.87 and 288,686.08
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Solution
The fourth proportional to 495,430.48, 683,682.87 and 288,686.08 is: 398,380.27
Step by Step Solution
- Step 1: Write the proportion equation
495,430.48 : 683,682.87 = 288,686.08 : x - Step 2: Convert to fraction form
495,430.48/683,682.87 = 288,686.08/x - Step 3: Cross multiply
495,430.48x = 683,682.87 × 288,686.08 - Step 4: Simplify right side
495,430.48x = 197,369,727,703.45 - Step 5: Solve for x
x = 197,369,727,703.45/495,430.48 - Step 6: Final answer
x = 398,380.27
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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.